JP4151307B2 - PHOTOCATALYST DEVICE AND PHOTOCATALYST REACTION DEVICE WITH PHOTOCATALYST CARRIER - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photocatalyst apparatus including a photocatalyst that is activated by a relatively short wavelength light and that causes a redox reaction of a substance in contact with or close to the substance.
[0002]
A photocatalyst is known which is excited and activated by irradiation with a short wavelength light and decomposes a substance in contact with, attached to or in close contact with the photocatalyst.
[0003]
A typical photocatalyst is titanium oxide (TiO₂) And some other type of photoresponsive semiconductor.
[0004]
Applications of this photocatalyst include, for example, cleaning to remove dirt components from the surface of an object (substrate), antifouling to prevent adhesion of dirt components, sterilization, deodorization, air purification, exhaust treatment, water purification, wastewater treatment , Decomposition of water (acquisition of hydrogen), acceleration of organic synthesis or organic decomposition reaction, decomposition of environmental pollutants.
[0005]
These application fields utilize the photocatalytic reaction and photocatalysis by the redox power of a powerful photocatalyst that is exhibited when photoexcited.
[0006]
For example, the photocatalyst irradiated with the short wavelength light is oxygen in the air (O₂), Or oxygen dissolved in water or mixed in water to activate ozone (O_Three) Or active oxygen (O) generated in water
Oxidative decomposition of chlorinated organic compounds such as bacteria, bacteria and trihalomethanes to deodorize, decolorize, disinfect or disinfect
The
[0007]
The photocatalyst excited by irradiation with short wavelength light is, for example, water (H₂O) shows high activity in decomposition of water, decomposes water to generate active oxygen (O) and hydrogen (H₂).
[0008]
Further, the photocatalyst is an environmental purification material, an organic halogen compound contained in the air or waste water, for example, volatile organic solvents such as trichlorethylene (TCE) and tetrachloroethylene (PCE), and herbicides such as agricultural chemicals such as pentazone. It contributes to the decomposition of environmental pollutants such as insecticides such as DEP, organophosphorus agrochemicals such as DDPV, and harmful inorganic compounds such as cyan and hexavalent chromium.
[0009]
[Prior art]
It is difficult to separate and recover the photocatalyst particles after a large number of photocatalyst particles are directly subjected to an oxidation-reduction reaction with a certain substance, and an apparatus using the photocatalyst particles becomes complicated. Therefore, in the prior art photocatalyst-containing device using the conventional photocatalyst particles, the photocatalyst layer containing the photocatalyst particles is supported (fixed, supported, held) on the support member (support) and used as a form of the photocatalyst support member. There are many cases.
[0010]
US Pat. No. 6,108,476 granted to the present inventor discloses a first photocatalyst device comprising a photocatalyst-carrying optical fiber in which an optical fiber is used as a support member and the surface of the optical fiber is coated with a photocatalyst. ing. A light beam is introduced from the end portion, and the introduced light beam is emitted from the surface to activate the photocatalyst.
[0011]
US Pat. No. 6,238,630 granted to the present inventor discloses a second photocatalytic device in which a light transmitting member (light guide) is used as a support member and a photocatalyst is disposed on or near the surface thereof. Has been. Then, light is introduced from a part of the light transmitting member, and the introduced light is emitted from the surface to activate the photocatalyst. Further, this US patent discloses that the photocatalyst is irradiated almost uniformly by alternately arranging scattering regions and non-scattering regions on the surface thereof.
[0012]
[Problems to be solved by the invention]
The main object of the present invention is to propose a novel photocatalytic device which is a further development of the aforementioned US Pat. No. 6,108,476 and / or US Pat. No. 6,238,630.
[0013]
[Means for Solving the Problems]
The main aspects and preferred embodiments of the present invention are as follows.
[0014]
One main aspect of the present invention is a side light or edge light type surface that has a surface and a side surface, transmits light incident from the side surface as a light incident portion by total internal reflection, and emits the light from the surface. A light guide member (light transmissive support member) for a light source, an optical fiber core, a photocatalyst partially or entirely coated on the optical fiber core, or a photocatalyst clad (photocatalyst film) further containing an adsorbent It is a photocatalyst device provided with a plurality of photocatalyst-carrying optical fibers arranged on the surface by flocking.
[0015]
Another main aspect of the present invention is for a surface light source having a surface and a side surface, transmitting a light beam incident from the periphery of the surface as a light incident portion by total internal reflection and emitting from the surface. A light guide member (light transmissive support member), an optical fiber core, a photocatalyst partially or entirely coated on the optical fiber core, or a photocatalyst clad (photocatalyst film) further containing an adsorbent, It is a photocatalyst device provided with a plurality of photocatalyst carrying optical fibers arranged by flocking on the surface.
[0016]
Still another main aspect of the present invention has a surface and a side surface, and transmits light incident from the periphery or the side surface of the surface as a light incident portion by total internal reflection and is emitted from the surface. A light guide member (light transmissive support member) for a surface light source, an optical fiber core, a photocatalyst partially or entirely coated on the optical fiber core, or a photocatalyst clad (photocatalyst film) further containing an adsorbent A plurality of photocatalyst-carrying optical fibers arranged by flocking on the surface, and light scattering / light direction changing means for directing a light beam transmitted through the light guide member (the light transmissive support member) to the surface And a photocatalytic device.
[0017]
The light scattering / light direction changing means may include a plurality of grooves, protrusions, or prisms formed on the surface of the light guide member (the light transmissive support member).
[0018]
The light scattering / light direction changing means may comprise a plurality of light scattering printing portions or rough surfaces formed on the surface of the light guide member (the light transmissive support member).
[0019]
The light scattering / light direction changing means may be composed of a plurality of light scattering particles dispersed inside the light guide member (the light transmissive support member).
[0020]
The light scattering / light direction changing means preferably has a “gradation pattern” ((gradation pattern: stepwise change pattern, gradual transition pattern)) as shown below.
[0021]
The light scattering / light direction changing means comprises a plurality of grooves, protrusions or prisms formed on one surface of the light guide member (the light transmissive support member) and having a varying number density distribution. Can have a pattern.
[0022]
The light scattering / light direction changing means is formed of a plurality of grooves, protrusions or prisms formed on one surface of the light guide member (the light transmissive support member) and changing in height. Can have a pattern.
[0023]
The light scattering / light direction changing means may have a gradation pattern composed of a plurality of grooves, protrusions or prisms formed on one surface of the support member and changing in width.
[0024]
The light scattering / light direction changing means includes a plurality of light scattering printing portions or rough surfaces formed on one surface of the light guide member (the light transmissive support member) and having a varying number density distribution. , Can have a gradation pattern.
[0025]
The light scattering / light direction changing means includes a plurality of light scattering printing portions or rough surfaces formed on one surface of the light guide member (the light transmissive support member) and having a varying width. Can have a pattern.
[0026]
The light scattering / light direction changing means may have a gradation pattern composed of a plurality of light scattering particles dispersed inside the support member and changing in number distribution density.
[0027]
Still another main aspect of the present invention has a surface and a side surface, and transmits light incident from the periphery or the side surface of the surface as a light incident portion by total internal reflection and is emitted from the surface. A light guide member (light transmissive support member) for a surface light source, an optical fiber core, a photocatalyst partially or entirely coated on the optical fiber core, or a photocatalyst clad (photocatalyst film) further containing an adsorbent A plurality of photocatalyst-carrying optical fibers arranged on the surface and provided with at least one opening or through hole through which the fluid can pass through the light guide member (the light transmissive support member). It is.
[0028]
Still another main aspect of the present invention has a surface and a side surface, and transmits light incident from the periphery or the side surface of the surface as a light incident portion by total internal reflection and is emitted from the surface. A light guide member (light transmissive support member) for a surface light source, an optical fiber core, a photocatalyst partially or entirely coated on the optical fiber core, or a photocatalyst clad (photocatalyst film) further containing an adsorbent A plurality of photocatalyst-carrying optical fibers arranged on the surface by flocking, and a photocatalyst film or a light reflection film formed on a region of the surface where the photocatalyst-carrying optical fiber is not arranged or flocked .
[0029]
Still another main aspect of the present invention has a surface and a side surface, and transmits light incident from the periphery or the side surface of the surface as a light incident portion by total internal reflection and is emitted from the surface. A light guide member (light transmissive support member) for a surface light source, an optical fiber core, a photocatalyst partially or entirely coated on the optical fiber core, or a photocatalyst clad (photocatalyst film) further containing an adsorbent A plurality of photocatalyst-carrying optical fibers arranged by flocking on the surface, and a condensing lens arranged at a free end of the photocatalyst-carrying optical fiber, whereby a fixed end of the photocatalyst-carrying optical fiber and the free end It is a photocatalytic device that can introduce light from
[0030]
Still another main aspect of the present invention is that the photocatalyst device according to each aspect and the light incident portion including the periphery of the surface or the side surface into the light guide member (the light transmissive support member). This is a photocatalytic reaction device comprising a light source for making incident light that excites the photocatalyst.
[0031]
Still another main aspect of the present invention is that the photocatalytic device of each embodiment and the light source of the photocatalytic reaction device are arranged on the side surface as a light beam introducing portion, and (b) a prism is interposed. Arranged on the side surface serving as a light beam introducing portion, (c) disposed around the surface serving as a light beam introducing portion via a prism, (d) disposed on the light beam introducing portion via an optical fiber for light transmission, or (E) A photocatalytic reaction device disposed in the light beam introducing portion with an optical fiber for light transmission and a prism interposed.
[0032]
The light source of the photocatalytic reaction device can be disposed on the side surface as a light beam introducing portion.
[0033]
The light source of the photocatalytic reaction device can be disposed on the side surface serving as a light beam introducing portion via a prism.
[0074]
The photocatalyst cladding is the photocatalyst itself (cladding, coating, jacket, cover, coat)
Or a photocatalyst layer comprising a plurality of photocatalyst particles.
[0075]
Multiple photocatalyst-carrying optical fibers are implanted (or flocked, raised, flocked, piled) on the support member (or support, base material) and on the surface thereof with or without an adhesive member. It is fixed.
[0076]
A light transmissive member made of a light transmissive material can be used as the support member.
[0077]
As the adhesive member, a curable adhesive having a room temperature curable property, a thermosetting property or a photocurable property, or a curable adhesive obtained by combining these can be used.
[0078]
When a curable adhesive is employed, the adhesive strength (flocking strength) of the photocatalyst-carrying optical fiber with respect to the light transmitting member is high, and permanent flocking can be achieved.
[0079]
As the adhesive member, a thermoplastic resin (hot melt adhesive) that is normally solid but becomes soft or fluidized by heating and becomes solid again by returning to room temperature can be used instead of the curable adhesive. .
[0080]
When a thermoplastic resin is used as the adhesive, the photocatalyst-carrying optical fiber can be easily removed from the light transmitting member by reheating, so that the photocatalyst-carrying optical fiber can be easily replaced with a new photocatalyst-carrying optical fiber after a predetermined period of use. The light transmissive member can be reused.
[0081]
It is desirable to perform the flocking process by an electrostatic flocking method (electrostatic flocking, electric flocking, electrodeposition flocking) using an electrostatic attraction force of a high voltage electrostatic field.
[0082]
By adopting electrostatic flocking, a large number of photocatalyst-carrying optical fibers can be planted on the light transmitting member in a short time with high production efficiency.
[0083]
Moreover, by adopting the electrostatic flocking method, the flocking direction is constant, and a large number of photocatalyst-carrying optical fibers can be planted on the light-transmitting support member with high density.
[0084]
Further, by adopting electrostatic flocking, the tip end portion, which is the light incident end portion of the photocatalyst-carrying optical fiber, pierces the adhesive member due to the anchoring effect due to the electrostatic attraction force, so that the bonding strength of the flocking can be further increased.
[0085]
When a light transmissive member made of a transmissive material is used as a support for supporting the photocatalyst-carrying optical fiber by flocking, light may be incident from the light incident end of the photocatalyst-carrying optical fiber via the light transmissive member. it can.
[0086]
The light beam introduced into the light transmissive support member is transmitted through the inside thereof, and is introduced into the core from the incident end of the photocatalyst-carrying optical fiber. The light beam introduced into the core of the photocatalyst-carrying optical fiber is transmitted in the longitudinal direction and gradually emitted from the core, and irradiates the photocatalyst cladding to activate the photocatalyst.
[0087]
Introduce into the inside of the light transmissive support member from a part of the light transmissive support member such as a part of the surface or side surface of the light transmissive support member, and activate the photocatalyst-supported optical fiber via the light transmissive support member can do.
[0088]
The light beam introduced into the core from the light incident end of the photocatalyst-carrying optical fiber is transmitted along the longitudinal direction according to the principle of total internal reflection, and then leaks and exits from the core surface. Light rays illuminate the photocatalytic cladding. The photocatalyst cladding is activated by this leakage light irradiation.
[0089]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, various preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0090]
In the drawings, the relative dimensions of the parts are depicted somewhat different from the actual dimensions in order to facilitate the description of the invention.
[0091]
In all the drawings, the same or similar parts are denoted by the same reference numerals and reference numerals.
[0092]
In order to make the description of the preferred embodiments of the present invention clear, the dimensions of a plurality of parts are shown differently from the actual ones in the drawings.
[0093]
Since the same or similar parts are given the same reference numerals and reference numerals, the description of the same or similar parts is avoided as much as possible.
[0094]
An embodiment of the present invention will be described with reference to FIGS.
[0095]
1, 2, and 3, the photocatalyst device 200 includes a plurality of photocatalyst-supported optical fibers (or photocatalyst-coated optical fibers, optical fibers with photocatalysts, photocatalysts / optical fibers) 100 and a support member (or a base, a support, a substrate, Support plate) 30. Reference numeral 35 in FIG. 3 indicates a reflecting means such as a reflecting mirror.
[0096]
First, a single photocatalyst-carrying optical fiber 100 will be described in detail with reference to FIG.
[0097]
A single photocatalyst-carrying optical fiber 100 includes a core 10, a core surface 10 a, a light incident end 10 c, a light exit end 10 d, and a photocatalyst cladding 20.
[0098]
The photocatalyst cladding 20 covers the surface 10a of the core 10 partially or entirely.
[0099]
In other words, the core 10 is an optical fiber core or a core-shaped light guide extending in the length direction, the light incident end portion 10c is the first end surface, and the light emitting end portion 10d is opposed to the first end surface. The photocatalyst cladding 20 is a photocatalyst layer, a photocatalyst film, or a photocatalyst-containing layer.
[0100]
The core 10 is made of a substantially transparent material capable of transmitting a short wavelength light capable of activating a photocatalyst such as ultraviolet light (UV light).
[0101]
The photocatalytic cladding 20 includes at least a photocatalytic material.
[0102]
The photocatalyst cladding 20 shown in FIG. 2 is obtained by coating the surface 10a of the core 10 with a photocatalyst layer in which at least a plurality of photocatalyst particles 20a are dispersed in a binder (binder, adhesive) 20b capable of transmitting light.
[0103]
Here, the photocatalyst particle 20a means a particulate, powdery, or small piece photocatalyst.
[0104]
Examples of photocatalytic materials that are activated by short-wavelength light include titanium dioxide (TiO2) (photoexcitation wavelength 388 nm or less), tungsten oxide (WO2) (photoexcitation wavelength 388 nm or less), zinc oxide (ZnO) (photoexcitation wavelength 388 nm or less), sulfide. A semiconductor metal oxide such as zinc (ZnS) (photoexcitation wavelength 344 nm or less), tin oxide (SnO2) (photoexcitation wavelength 326 nm or less), or the like is used.
[0105]
Alternatively, for example, a special metal-supported photocatalyst in which a small amount of platinum or the like is supported on titanium dioxide improves the photocatalytic action.
[0106]
Furthermore, visible light reaction type photocatalyst materials that can be activated by visible light having a relatively short wavelength, such as purple and blue, which have been developed in recent years can be used.
[0107]
The core 10 is preferably made of an inorganic or organic material that is transmissive and light-guiding for light in the ultraviolet band.
[0108]
As the core 10 excellent in ultraviolet transmittance, the following inorganic optical material or organic optical material is used.
[0109]
Examples of the inorganic optical material used as the core 10 include transparent quartz glass (fused quartz), sapphire, and borosilicate glass containing at least 999 weight percent SiO2.
[0110]
Examples of the organic optical material used as the core 10 include silicon (abbreviated S1) resin such as dimethyl silicone, silicone rubber, polycarbonate (abbreviated PC) resin, acrylic resin such as polymethyl methacrylate (abbreviated PMMA), ultraviolet light, and the like. Examples thereof include transparent amorphous fluorine resin (trade name Cytop manufactured by Asahi Glass Co., Ltd.), polyester resin (optical polyester resin manufactured by Kanebo Co., Ltd.), and the like.
[0111]
As the binder (binder, binder, adhesive) 20b, an organic binder such as a silicone resin, polycarbonate resin, acrylic resin, fluororesin, or polyester resin that transmits light well, or an inorganic binder such as transparent glass or frit Is used.
[0112]
The photocatalyst cladding 20 can also be composed of only a photocatalyst material, and in this case, the binder (binding material, adhesive) 20b is omitted.
[0113]
For example, titania sol (Titaniasol.) Is coated on the surface 10a of the core 10 in advance, and is heat-treated at a temperature of about 500 ° C., whereby a titanium dioxide photocatalyst is formed on the surface 10a.
[0114]
Alternatively, a photocatalyst film can be directly formed on the surface 10a of the core 10 by vacuum deposition, sputtering, chemical vapor deposition (chemical paper deposition: CVD), or the like.
[0115]
The light guide used for the core 10 and the photocatalyst cladding 20 used for the photocatalyst cladding 20 can be selected such that the refractive index of the core 10 is higher than the refractive index of the photocatalyst cladding 20.
[0116]
In this case, the light beam L3 gradually leaks from the light entrance end 10c to the light exit end 10d from the core 10 to the photocatalyst cladding 20, so that the length of the photocatalyst-carrying optical fiber 100 is relatively long. The light beam L3 can reach the light emitting end portion 10d and can activate the photocatalyst cladding 20 over the entire length.
[0117]
However, the light guide used for the core 10 and the photocatalyst cladding 20 may be selected so that the refractive index of the core 10 is lower than the refractive index of the photocatalyst cladding 20.
[0118]
In this case, the light beam L3 from the core 10 to the photocatalyst cladding 20 suddenly leaks from the light incident end portion 10c toward the light output end portion 10d. Therefore, when the length of the photocatalyst-supporting optical fiber 100 is relatively short, Can reach the light exit end 10d and can activate the photocatalyst cladding 20 over its entire length.
[0119]
However, when the length is relatively long, it cannot reach the light emitting end portion 10d, and therefore the photocatalytic cladding 20 existing in the vicinity of the light emitting end portion 10d does not cause a photocatalytic reaction.
[0120]
In any case, it is necessary to consider an optimum combination of the refractive index of the core 10 and the photocatalytic cladding 20 and the length of the core so that the photocatalytic cladding 20 can be activated from the light incident end 10c to the light emitting end 10d. There is.
[0121]
Ultraviolet light (UV light) L3 emitted from the ultraviolet light source is directed to the light incident end 10c of the photocatalyst-carrying optical fiber 100.
[0122]
The UV light L3 received by the light incident end 10c is transmitted by the principle of total internal reflection toward the light emitting end 10d facing the light incident end 10c.
[0123]
The UV light L3 is repeatedly reflected in the longitudinal direction of the core 10, and at the same time, the UV light L3 is emitted from the core surface 10a sequentially, that is, leaks from the core 10a.
[0124]
The emitted light beam L3 is irradiated on the photocatalyst cladding 20 covered on the core surface 10a to activate the photocatalyst.
[0125]
As shown in FIG. 2, it is desirable that the photocatalyst cladding 20 contains an adsorbent substance (adsorbent particle) 20c capable of adsorbing a gaseous pollution factor (contaminant) in addition to the photocatalyst particle 20a.
[0126]
Suitable adsorbent substances (adsorbent particles) 20c include simple substances such as apatite, activated carbon, zeolite, porous ceramics, silica gel, or a composite material thereof.
[0127]
The mixture of the photocatalyst particles 20a and the adsorbent particles 20c is disposed or dispersed in the binder 20b of the photocatalyst cladding 20 and / or on the surface of the binder 20b.
[0128]
Instead, a plurality of photocatalyst-supported adsorbent particles each having a plurality of photocatalyst particles 20a each having a size smaller than that of one adsorbent particle 20c are contained in the binder 20b. Also good.
[0129]
In the photocatalyst clad 20 (photocatalyst / absorbent clad) including the composite material of the photocatalyst 20a and the absorbent 20c described above, a contaminant is adsorbed until its adsorption capacity is always saturated regardless of the presence or absence of light. The photocatalyst is activated when irradiated with the light beam L3, decomposes the contaminant adsorbed on the absorbent adjacent to or in contact with the photocatalyst, and restores the adsorption capacity of the absorbent 20c to the initial state.
[0130]
Thus, when an absorber is used with a photocatalyst, a large amount of contaminants can be processed by oxidation and reduction by the photocatalytic function of the photocatalyst.
[0131]
Contrary to the photocatalyst-supported adsorbent particles, a plurality of adsorbent-supported photocatalysts each having a plurality of adsorbent particles 20c each having a size smaller than that of one photocatalyst particle 20a may be contained in the binder 20b. Good.
[0132]
A plurality of adsorbent-supported photocatalysts in which an adsorbent is partially formed on the surface of one photocatalyst particle 20a may be included in the binder 20b, opposite to the photocatalyst-supported adsorbent particles.
[0133]
A plurality of adsorbent-supported photocatalysts in which an adsorbent is partially formed on the surface of one photocatalyst particle 20a may be included in the binder 20b, opposite to the photocatalyst-supported adsorbent particles.
[0134]
A plurality of adsorbent-supported photocatalyst particles in which an adsorbent is partially formed on the surface of one photocatalyst particle 20a may be contained in the binder 20b, opposite to the photocatalyst-supported adsorbent particles.
[0135]
For example, apatite (calcium phosphate) such as porous apatite disclosed in JP-A-10-244166 and U.S. Pat. Nos. 5,981,425 and 6,180,548 granted to Taoda, Nonami et al. An adsorbent consisting of may be formed at least partially on the surface of the photocatalyst film.
[0136]
Apatite-supporting photocatalyst particles in which the porous apatite adsorbent is at least partially formed on the surface of one photocatalyst particle 20a may be used, and a large number of these may be contained in a binder resin.
[0137]
An organic binder resin 20b containing apatite-supporting photocatalyst particles can be coated on the surface 10a of the optical fiber core 10.
[0138]
In the apatite-supported photocatalyst particles, since the photocatalyst particles 20a are partially coated with apatite, the optical fiber core 10 and the organic binder resin 20b are not directly in contact with the optical fiber core 10 and the organic binder resin. However, contact with the photocatalyst can be avoided, and deterioration of the optical fiber core 10 and the organic binder resin 20b can be prevented while exhibiting the photocatalytic function.
[0139]
When the optical fiber core 10 is an organic resin that is easily deteriorated by contact with the photocatalyst, that is, a polymer core, when the organic binder resin 20 containing apatite-supported photocatalyst particles is used as the photocatalyst cladding, the photocatalyst-supported polymer optical fiber 100 is used. Can have a long life.
[0140]
Ultraviolet light (UV light) L3 emitted from the ultraviolet light source is directed to the light incident end 10c of the photocatalyst-carrying optical fiber 100. The UV light L3 received by the light incident end 10c is transmitted by the principle of total internal reflection toward the light emitting end 10d facing the light incident end 10c.
[0141]
The UV light L3 is repeatedly reflected in the longitudinal direction of the core 10, and at the same time, the UV light L3 is emitted from the core surface 10a sequentially, that is, leaks from the core 10a. The emitted light beam L3 is irradiated on the photocatalyst cladding 20 covered on the core surface 10a to activate the photocatalyst.
[0142]
Next, a first embodiment of the present invention will be described in detail with reference to FIG. 1 and FIG.
[0143]
1 and 3, the photocatalyst device 200 includes a plurality of photocatalyst-carrying optical fibers 100 and one support member 30 described in detail in FIG. 2, and the plurality of photocatalyst-carrying optical fibers 100 are arranged on the support member 30. Yes.
[0144]
The plurality of photocatalyst-supporting optical fibers 100 are implanted on the support member 30 while maintaining a raised state partially or almost entirely.
[0145]
The support member 30 is made of a substantially transparent member that can transmit light in a short wavelength band, such as ultraviolet rays (UV light).
[0146]
As shown in FIGS. 1 and 3, the support member 30 can be formed of a transparent plate typically having a substantially rectangular shape, for example.
[0147]
A support member made of a plate-like transparent plate having a substantially rectangular shape, that is, a transparent support plate 30, includes a first main surface that is a front surface, a second main surface that is a back surface, a first side surface 3, It consists of a second side face 30d facing the one side face 30c and a predetermined thickness.
[0148]
Examples of the organic material used for the transparent support member 30 include an acrylic resin, a polycarbonate resin, an amorphous fluororesin, a silicone resin, and a silicone rubber that have a high ultraviolet ray permeability.
[0149]
In applications where these organic materials require a long life, it is desirable to use amorphous fluororesins, silicone resins, and silicone rubbers having excellent durability against ultraviolet irradiation.
[0150]
Examples of the inorganic material used for the transparent support member 30 include fused quartz and ultraviolet transmissive glass.
[0151]
As shown in FIG. 3, the adhesive member (adhesive, adhesive layer) 60 is disposed on the front surface 30 a of the support member 30.
[0152]
As the adhesive layer 60, it is desirable to use a substantially transparent resin adhesive.
[0153]
Examples of the transparent resin adhesive include silicone resin, acrylic resin, polycarbonate resin, fluorine resin, polyethylene resin, polyester resin, and epoxy resin.
[0154]
An electrostatic flocking method is suitable as a flocking method (flocking method) for flocking a plurality of photocatalyst-carrying optical fibers 100 on the front surface 30a of the plate-like transparent support member 30, and thermosetting is used as the adhesive layer 60 therefor. Or photocurable curable resins are suitable.
[0155]
Electrostatic flocking methods are typically widely used in the textile industry and include those using a DC power supply and those using an AC power supply.
[0156]
A method for flocking a plurality of photocatalyst-carrying optical fibers 100 on the front surface 30a of the plate-like transparent support member 30 using an electrostatic flocking method will be described below.
[0157]
An uncured curable adhesive having fluidity and tackiness prepared by mixing a curing agent with an adhesive material is prepared in advance.
[0158]
The uncured curable adhesive is applied to the front surface 30a of the plate-like transparent support member 30 by a conventional coating method such as printing, spraying, dipping, or transfer, thereby forming the adhesive layer 60.
[0159]
As shown in FIG. 8, a large number of photocatalyst-carrying optical fibers 100 are stored in advance in a hopper HP that is a funnel-type storage container having an opening that is a take-out opening at the bottom.
[0160]
At the bottom of the hopper HP, there is provided a metal electrode ME with an opening having a large number of openings such as a metal mesh and a metal plate having a large number of holes.
[0161]
The size of the opening of the metal electrode ME is somewhat larger than the diameter of the photocatalyst-carrying optical fiber 100 alone so that a large number of photocatalyst-carrying optical fibers 100 can pass through the opening.
[0162]
By providing an optional vibrator (not shown) that applies vibrations such as electromagnetic vibration and ultrasonic vibration to the hopper HP, it is possible to help the photocatalyst-carrying optical fiber 100 pass through the opening.
[0163]
The size of the photocatalyst-carrying optical fiber 100 is not particularly limited.
[0164]
For example, the photocatalyst-carrying optical fiber 100 having an average diameter of about 0.01 mm (10 μm) to about 3.0 mm and an average length of about 0.5 mm to about 50 mm can be used.
[0165]
A hopper (storage box) capable of storing a large number of photocatalyst-carrying optical fibers 100 is opposed to the transparent support member 30 at a predetermined distance, and a high DC or AC voltage (about 10 to 120 KV) is provided at the bottom of the hopper to be charged. It applies between the mesh screen electrode of the conductor used as an electrode, and the uncured curable adhesive layer 60 (transparent support member 30).
[0166]
The photocatalyst-carrying optical fiber 100 is given an electrostatic charge when passing through a high-voltage mesh screen charging electrode.
[0167]
The charged photocatalyst-carrying optical fiber 100 is propelled by electrostatic attraction and moves from the inside of the hopper to the adhesive layer 60 formed on the front surface 30a of the transparent support member 30 due to the gravity of the photocatalyst-carrying optical fiber. .
[0168]
The photocatalyst-carrying optical fiber is adhered to the adhesive layer 60 by the adhesiveness of the uncured adhesive so as to be arranged substantially perpendicular to the front surface 30a. At this time, one end of the photocatalyst-carrying optical fiber bites into the adhesive layer 60 due to the force of electrostatic attraction and is thrown.
[0169]
Therefore, a large number of photocatalyst-carrying optical fibers 100 are temporarily fixed on or in the uncured adhesive layer 60, and temporarily flocked.
[0170]
The uncured adhesive is then cured by applying curing conditions such as heating or light irradiation, and a large number of photocatalyst-carrying optical fibers 100 are permanently fixed on or in the adhesive layer 60 and are permanently planted in a napped state. The
[0171]
Instead of using the above-mentioned cured resin as the adhesive, a thermoplastic resin (thermosoftening resin, hot melt adhesive) that is solid at room temperature and becomes a fluid at a predetermined temperature above room temperature can be used.
[0172]
For example, a solid thermoplastic resin is heated by a hot melt applicator and applied in a fluidized state on the front surface 30a of the transparent support member 30, and is naturally cooled to form a solid thermoplastic resin layer.
[0173]
Next, the transparent support member 30 is placed on, for example, a hot plate, and the solid thermoplastic resin layer is reheated to heat soften the thermoplastic resin and impart viscosity.
[0174]
A high voltage is applied between the conductive mesh screen of the hopper containing a large number of photocatalyst-carrying optical fibers 100 and the opposing thermoplastic resin layer 60 (transparent support member 30) that is a predetermined distance away.
[0175]
A number of photocatalyst-carrying optical fibers 100 are charged, moved to the front surface 30a of the transparent support member 30 by electrostatic attraction, and temporarily fixed.
[0176]
When the transparent support member (transparent support plate) 30 is, for example, stopped from heating or moving from the hot plate and naturally cooled, a large number of photocatalyst-supporting optical fibers 100 are permanently fixed to the thermoplastic resin layer 6 (main fixing). And permanently planted.
[0177]
By applying such an electrostatic flocking method, the photocatalyst-carrying optical fiber can be planted almost upright on the surface of the support member, so that a highly flocked flocking can be obtained, and the photocatalyst-carrying optical fiber size and aspect ratio (thickness) For example, the photocatalyst-carrying optical fiber 100 having a flocking density of about 100 to about 150 pieces / square cm can be easily flocked on the support member.
[0178]
The light beam L from the light source 40 arranged on one side 30c side is introduced into the inside from one side surface 30c of the transparent support member 30, and is transmitted to the other side surface 30d by total internal reflection.
[0179]
A part of the transmitted light beam L leaks from the surface 30 a during transmission and exits, and enters one end of the photocatalyst-carrying optical fiber 100.
[0180]
The refractive index N1 of the transparent support member 30 can be set higher than the refractive index N2 of the adhesive layer 60 after being cured or solidified.
[0181]
When N1> N2 is set in this way, even when the distance between the pair of side surfaces 30c and 30d is long, the light beam L can be transmitted to the other 30d, that is, to the photocatalyst-supporting optical fiber 100 located in the vicinity of the other side surface 30d. Can also make the light beam L incident.
[0182]
Unlike this, the refractive index N1 of the transparent support member 30 is set equal to or lower than the refractive index N2 of the cured or solidified adhesive layer 60 (N1 ≦ N2), and the distance between the pair of side surfaces 30c and 30d is long. In this case, it becomes difficult to make the light beam L incident on the photocatalyst-carrying optical fiber 100 located near the other side surface 30d.
[0183]
However, many light beams L are incident on the photocatalyst-supporting optical fiber 100 located in the vicinity of the half surface and one side surface 30c.
[0184]
The light beam L emitted from the light source 40 is introduced into the transparent support plate 30 that is a light guide from the first side surface 30c for light incidence, and the inside of the transparent support plate 30 is repeatedly subjected to multiple reflections by total internal reflection. It proceeds toward the second side face 30c facing the side face 30c.
[0185]
At the same time, the light beam L traveling toward the second side surface 30c is gradually emitted from the front surface 30a in the course of traveling, and the light incident end 10c of the photocatalyst-carrying optical fiber 100 shown in FIG. Is incident on.
[0186]
As shown in FIG. 3, in order to appropriately control the emission amount and the emission position of the light beam L from the front surface 30a, any light scattering means (light direction changing means or light diffusing means)90Can be provided on the transparent support plate 30.
[0187]
And light scattering means903 is arranged on the back surface 30b of the transparent support plate 30 in FIG.
[0188]
In FIG. 3, the light scattering means 90 includes a plurality of micro-grooves and is formed on the back surface 30b.
[0189]
The light scattering means 90 is not limited to the groove shown in FIG. 3, and a plurality of minute projections (micro-projection), a micro-prism, or the like can be used instead of the groove. (Not shown)
[0190]
The light scattering means 90 is a light scattering means (light scattering means, light diffusion means, light for scattering, diffusing or redirecting light rays toward the adhesive layer 60 in order to irradiate the photocatalyst-carrying optical fiber 100 with light rays. Function as direction changing means).
[0191]
The light scattering means 90 is an arbitrary gradation pattern (gradation pattern, gradual transition pattern) that allows light to be emitted uniformly over the entire area of the front surface (one surface, the first surface) 30a. Is preferably formed on the transparent support member 30.
[0192]
In order to obtain a uniform surface brightness for allowing light rays to uniformly enter almost all the photocatalyst-carrying optical fibers 100 planted in a uniform distribution over all regions of the front surface 30a of the transparent support member 30 in this way, In FIG. 3, the transparent support member 30 is distributed so that the number of grooves 90 having substantially the same height (depth) having a substantially triangular cross section is gradually decreased and distributed from one side surface 30 c to the other side surface 30 d. It arrange | positions at the back surface (one surface, 1st surface) 30b side.
[0193]
When a substantially linear light source 40 such as a single linear light source or a plurality of point light sources arranged in a line as shown in FIG. 3 is arranged close to the first side face 30c only, The gradation pattern of the light scattering means 90 composed of a plurality of light scattering portions such as grooves (reference numeral 90 in FIG. 3), protrusions, prisms, a surface treatment portion, and a scattering paint application portion is from the first side face 30c to the second. The “distribution density” (arrangement density) of the plurality of light scattering portions is sequentially arranged on the back surface (the other surface, the second surface) 30b so as to sequentially change (decrease) toward the side surface 30d. Has been.
[0194]
The gradation pattern type light scattering means is not limited to the gradation pattern type light scattering means by changing the “distribution density” of the plurality of light scattering portions illustrated in FIG. 3, and as will be described in detail later, The height (depth) or width of light scattering parts such as a plurality of microgrooves, microprotrusions, microprisms, and surface parts is sequentially changed toward the side of the surface or toward the center between the pair of side surfaces. You can make it a style.
[0195]
By adopting these various gradation pattern type light scattering means 90, light rays (see FIG. 2) are uniformly applied to all of the light incident portions (reference numeral 10c in FIG. 2) of the plurality of photocatalyst-carrying optical fibers 100 shown in FIG. It is possible to produce a uniform surface brightness for incidence of the symbol L3).
[0196]
The substantially linear first light source 40 is arranged close to the first side face 30c side, and the substantially linear second light source is arranged close to the second side face 30d side. it can.
[0197]
When the light source is disposed on each of the pair of side surfaces in this way, the gradation pattern of the light scattering means 90 is directed from the first side surface 30c to the substantially center between the first side surface 30c and the second side surface 30d. So that the distribution density of the plurality of light scattering portions such as micro grooves is sequentially decreased and changed, and the distribution density of the plurality of light scattering portions is increased and changed sequentially. Sequentially, they can be arranged on the back surface 30b.
[0198]
Therefore, even when linear light sources are arranged adjacent to the pair of side surfaces 30c and 30d, uniform surface brightness for allowing the outgoing light rays to uniformly enter all of the plurality of photocatalyst-carrying optical fibers 100 can be generated. .
[0199]
Also in this case, the gradation pattern of the light scattering means 90 sequentially increases the height (depth) or width of the light scattering portions such as a plurality of minute grooves from the first side face 30c and the second side face 30d toward the center. It can be increased and changed.
[0200]
When a plurality of photocatalyst-carrying optical fibers 100 of the photocatalyst device 300 are irradiated with light rays that react with the photocatalyst, the photocatalyst carried on the photocatalyst-carrying optical fiber 100 is activated, that is, excited.
[0201]
Accordingly, when the photocatalyst-carrying optical fiber 100 and the gas or liquid containing the contaminant are brought into contact or close to each other, the contaminant is oxidized or reduced and decomposed by the photocatalytic function to purify the gas or liquid. At the same time, the photocatalyst-carrying optical fiber 100 itself is kept clean by the self-cleaning effect of the photocatalyst, so that the cleaning and maintenance work of the photocatalyst device 300 can be substantially unnecessary.
[0202]
Referring to FIGS. 2 and 3 again, the UV light L2 incident on the adhesive layer 60 further travels toward the photocatalyst-carrying optical fiber 100 and the outside.
[0203]
The light beam L3 directed to the light incident end 10c of the photocatalyst-carrying optical fiber 100 is received by the light incident end 10c and transmitted through the core 10 toward the other end 10d. In the middle of the transmission of the light beam L3, the light gradually leaks from the inside of the core 10 to the photocatalyst clad 20, and the photocatalyst of the photocatalyst clad 20 is irradiated from inside to activate.
[0204]
Furthermore, when a part of the light beam L2 directed to the outside through the adhesive layer 60 is irradiated onto the exposed surface of the photocatalyst cladding 20 of the photocatalyst-carrying optical fiber 100, the photocatalyst is activated.
[0205]
When many photocatalyst-carrying optical fibers 100 are densely planted in the adhesive layer 60, that is, when many photocatalyst-carrying optical fibers 100 are planted in the adhesive layer 60 at a high density, they are received by the light incident end 10c. The amount of light to be increased increases and a large amount of light contributes to the activation of the photocatalyst.
[0206]
Further, when a large number of photocatalyst-carrying optical fibers 100 are densely implanted in the adhesive layer 60, almost all of the light rays that are not received by the light incident end 10c and are emitted from the exposed surface of the adhesive layer 60 are photocatalyst-carrying optical fibers 100. The exposed surface of the photocatalyst cladding 20 is irradiated.
[0207]
Therefore, when a large number of photocatalyst-carrying optical fibers 100 are densely packed in the adhesive layer 60, almost all the light rays traveling to the adhesive layer 60 contribute to the activation of the photocatalyst.
[0208]
That is, the photocatalyst-carrying optical fiber 100 can receive light from the inside and the outside, and has an effect that the light use efficiency is extremely high.
[0209]
A large number of photocatalyst particles may be dispersed in the adhesive layer 60 or on the exposed surface.
[0210]
As described above, in a preferred embodiment of the present invention, a side light or edge light type surface light source that causes a light beam from a light source to enter the inside of the light guide member from the side surface of the light guide member and leaks the light beam from the surface and the surface thereof. The photocatalyst device is constructed by skillfully combining a large number of photocatalyst-carrying optical fibers arranged in the above.
[0211]
With this configuration, the light from the light source can be used to irradiate the photocatalyst very efficiently, and the treatment area with the contaminant or the fluid containing the contaminant that is in close proximity or in contact can be dramatically increased.
[0212]
Various modifications of the above-described preferred embodiment of the present invention will be described with reference to FIG.
[0213]
As illustrated in FIG. 4, the shape or pattern of the photocatalyst-supporting optical fiber including the photocatalyst or the composite of the photocatalyst and the adsorbent can be arbitrarily modified. The photocatalyst apparatus 3004 shown in FIG. 4 and the photocatalyst apparatus 200 shown in FIG. 3 differ only in the shape of the photocatalyst-carrying optical fiber, and the other parts (configuration and components) are the same.
[0214]
In FIG. 4, in order from left to right, a U-shaped photocatalyst-carrying optical fiber 100a, a first coiled photocatalyst-carrying optical fiber 100b, a second coil-like photocatalyst-carrying optical fiber 100c, and a first technique The photocatalyst-carrying optical fiber 100d, the second split photocatalyst-carrying optical fiber 100e, and the random-shaped photocatalyst-carrying optical fiber 100f are depicted.
[0215]
The U-shaped photocatalyst-carrying optical fiber 100a is bent so that the photocatalyst-carrying optical fiber is substantially U-shaped, and the first terminal part and the second terminal part are light guides, that is, the transparent plate 30 (adhesive). The hair is implanted so as to be fixed to the surface of the layer 60).
[0216]
In the U-shaped photocatalyst-carrying optical fiber 100a, both the first terminal portion and the second terminal portion serve as light incident ends that receive light beams emitted from the light guide 30 and the adhesive 60.
[0217]
In this case, the number of photocatalyst-carrying optical fibers to be planted can be reduced, and the height thereof can be reduced, that is, the entire thickness of the photocatalyst device 300 can be reduced. The
[0218]
The first coiled photocatalyst-carrying optical fiber 100b and the second coiled photocatalyst-carrying optical fiber 100c have a plurality of substantially circular portions extending continuously.
[0219]
By reducing the bending radius, the light transmitted through the core can be leaked to the photocatalyst cladding by bending loss of the optical fiber.
[0220]
In these cases, either one of the end portions of the photocatalyst-carrying optical fiber 100b is implanted so as to be fixed to the surface of the light guide, that is, the transparent plate 30 (adhesive layer 60), thereby forming a light incident end.
[0221]
In the first coil-shaped photocatalyst-carrying optical fiber 100b, the diameters of a plurality of substantially circular portions extending continuously are substantially equal.
[0222]
In the second coil-shaped photocatalyst-carrying optical fiber 100c, the diameters of a plurality of substantially circular portions extending continuously are different, and the diameters are gradually changed.
[0223]
The first split-type photocatalyst-supporting optical fiber 100d and the second split-type photocatalyst-supported optical fiber 100e are a plurality of branch-like photocatalyst-supported optical fibers branched from a single trunk-like photocatalyst-supported optical fiber. have.
[0224]
In these cases, either one end of the trunk-like photocatalyst-carrying optical fiber is planted so as to be fixed to the surface of the light guide, that is, the transparent plate 30 (adhesive layer 60), thereby forming a light incident end.
[0225]
In the first split-type photocatalyst-supporting optical fiber 100d, a plurality of branch-like photocatalyst-supported optical fibers branch from different portions of the trunk-like photocatalyst-supported optical fiber. In 100e, a plurality of branched photocatalyst-supporting optical fibers are branched from the same portion of the trunk-like photocatalyst-supporting optical fiber.
[0226]
In the random-shaped photocatalyst-carrying optical fiber 100f, the photocatalyst-carrying optical fiber is randomly extended so as to have a large number of circular portions.
[0227]
The radii of the large number of circular portions may be reduced so that bending loss can occur.
[0228]
In this case, any one end portion of the photocatalyst-carrying optical fiber 100f having a random shape is planted so as to be fixed to the surface of the light guide, that is, the transparent plate 30 (adhesive layer 60) to form a light incident end.
[0229]
In the embodiment of the present invention shown in FIGS. 1 to 4, the light transmissive support member 30 is a parallel plate having a substantially uniform thickness over the entire area from the first side face 30 c receiving the light beam L to the second side face 30 d. However, the support member 30 is not limited to such a parallel plate.
[0230]
For example, like the photocatalyst device 400 according to another embodiment of the present invention shown in FIG. 5, the thickness of the first side surface 70 c that receives the light from the light source 40 is increased in the light transmissive support member 70. The taper may be formed of a tapered transparent plate having a thickness that is successively (or stepwise) reduced in thickness toward the second side surface 70d facing the surface 70c.
[0231]
That is, the photocatalytic device 400 includes a tapered first transparent surface 70 having a horizontal first surface 70a and a second surface 70b inclined at a predetermined angle from the first side surface 70c toward the second side surface 70d; The adhesive member layer 60 formed on the first surface 70a and the above-described many photocatalyst-supporting optical fibers 100 planted in the adhesive member layer 60 are provided.
[0232]
Since the photocatalyst device 400 uses the tapered transparent plate 70, the light beam L from the light source 40 received by the first side surface 70c passes through the inside of the tapered transparent plate 70 from the first side surface 70c to the second side. The condition of total reflection is broken at the second surface 70b that is inclined in the middle of the transmission with internal total reflection toward the side surface 70d, and the light is gradually emitted from the first surface 70a.
[0233]
Furthermore, it is desirable to provide a plate-like or layered light reflector 80 disposed on the second side surface 70d side and / or a plate-like or layered light reflector 90 disposed on the second surface 70b side. Since the light reflector 80 is provided, it is possible to eliminate leakage of light from the second side surface 70d to the outside. Further, since the light reflector 90 is provided, it is possible to prevent the light from leaking from the second surface 70b to the outside.
[0234]
In FIGS. 1, 3, 4 and 5, the light source 40 is disposed only on one side 30c, 70c side of the transparent plates 30, 70, but is not limited to this, and at least one is provided on each of the plurality of side surfaces. Two light sources may be arranged.
[0235]
For example, in another embodiment of the present invention shown in FIG. 6, a parallel plate-shaped light-transmitting support member 72 having a substantially uniform thickness is used, and a first reflecting mirror (reflector) 50a is provided on the first side surface 72c side. The first light source 40a is disposed, and the second reflecting mirror 50b and the second light source 40b are disposed on the second side surface 72d facing the first side surface 72c.
[0236]
However, the light transmissive support member is not limited to a parallel plate shape, and for example, a light source is provided on each of the pair of side surfaces, and a deformed tapered light transmissive support member whose thickness decreases from the pair of side surfaces toward the center is used. May be.
[0237]
That is, in another embodiment of the present invention shown in FIG. 6, the photocatalytic device 500 includes a first surface 72a and a second surface 72b facing each other at substantially equal intervals, and a first side surface 72c and a second side surface facing each other. A light transmissive support member 72 formed of a parallel plate having 72d, an adhesive member layer 60 formed on the first surface 72a, and the above-described many photocatalyst-supporting optical fibers 100 planted in the adhesive member layer 60. And a scattering reflection member 91 disposed on the second surface 72b side.
[0238]
The scattering reflection member 91 shown in FIG. 6 is obtained by, for example, selectively applying a coating containing a large number of light scattering particles such as white pigments and glass beads in a predetermined pattern shape on the second surface 72b. is there.
[0239]
The scattering reflection member 91 has a large number of point-like or band-like scattering reflection portions 91-1, 91-2, ..., 91- (n-1), 91n.
[0240]
The arrangement density of the scattering reflection parts is small in the scattering reflection part 91-1 in the vicinity of the first side surface 72c and the second side surface 72d, and the scattering reflection part 91 in the middle between the first side surface 72c and the second side surface 72d. -N increases.
[0241]
That is, the scattering reflection member 91 has a gradation pattern (gradually changing pattern) in which a large number of scattering reflection portions are small in the vicinity of the pair of side surfaces 72c and the second side surface 72d and increase in the center thereof. 2 on the surface 72b.
[0242]
Therefore, the pair of light beams introduced from the pair of light sources 40a and 40b to the light-transmissive support member 72 attenuates while traveling from the vicinity of the pair of side surfaces 72c and 72d to the center, but forms a gradation pattern. Due to the presence of the scattering reflector 91 having a distribution density, the light can be emitted almost uniformly from the front surface of the first surface 72a.
[0243]
5 and 6, between the adhesive member 60 and the light transmissive support member 72, a light transmissive conductive material that is substantially light transmissive and conductive, such as a transparent conductive film represented by tin oxide or oxide oxide. A member can be interposed.
[0244]
In another embodiment of the present invention shown in FIG. 7, the photocatalytic device 600 has a light-transmissive conductive member 110 interposed between the adhesive member 60 and the light-transmissive support member 72 in FIG. 6.
[0245]
In another embodiment of the present invention shown in FIG. 8, the photocatalytic device 410 has a light transmissive conductive member 110 interposed between the adhesive member 60 and the light transmissive support member 70 in FIG. 5.
[0246]
Unlike the photocatalyst device 410, in the other photocatalyst device using a non-light-transmissive and opaque material as the support member, a normal non-light-transmissive and opaque conductive member may be used without using the light-transmissive conductive member. it can.
[0247]
In another embodiment of the present invention shown in FIG. 8, the photocatalytic device 410 has a light transmissive conductive member 110 interposed between the adhesive member 60 and the light transmissive support member 70 in FIG. 5.
[0248]
The light-transmissive conductive member 110 shown in FIGS. 7 and 8 can be used as one electrode (earth electrode, ground electrode) for electrostatic flocking.
[0249]
FIG. 9 shows an embodiment of a method of manufacturing the photocatalyst device 600 shown in FIG. 7, for example, by an electrostatic flocking method using the light-transmissive conductive member 110 as one electrode 110a for electrostatic flocking.
[0250]
As shown in FIG. 9, a plurality of photocatalyst-supporting optical fibers 100 are stored in advance in a storage box (hopper) HP having a metal electrode ME having a large number of openings at the bottom.
[0251]
As shown in FIG. 9, the light transmission applied and formed almost entirely on the first surface 72a, the second surface 72b, the opposing first side surface 72c, the second side surface 72d, and the first surface 72a. A light transmissive support member 72 made of a parallel plate having a conductive conductive member 110 and a plurality of scattering reflection members 91 selectively formed on the second surface 72b is prepared.
[0252]
Next, a liquid uncured curable resin adhesive 60 is applied on the light transmissive conductive member 110.
[0253]
The permeable support member 72 is opposed to the bottom of the storage box (hopper) HP at a predetermined interval with the application surface of the adhesive 60 facing upward.
[0254]
One pole of the high-voltage power supply PS is connected to one end 110a of the light-transmissive conductive member 110 via the switch means SW, and the other pole of the high-voltage power supply PS is connected to a metal having a large number of openings at the bottom of the storage box (hopper) HP. Connect to electrode ME.
[0255]
When the switch means SW is turned on, a high voltage of about 30 KV to about 80 KV of the high voltage power supply PS is applied between the metal electrode ME and the light-transmissive conductive member 110.
[0256]
The plurality of photocatalyst-carrying optical fibers 100 housed in the housing box (hopper) HP sequentially come into contact with the high potential metal electrode M and are charged.
[0257]
The plurality of charged photocatalyst-carrying optical fibers 100 are given an electrostatic attraction force and are pushed out from the opening of the metal electrode M toward the light-transmissive conductive member 110 that is an opposing electrode.
[0258]
The plurality of photocatalyst-carrying optical fibers 100 reach the uncured curable resin adhesive 60 on the light transmissive conductive member 110.
[0259]
The plurality of photocatalyst-carrying optical fibers 100 are thrown into the uncured adhesive 60 having sticky ends by a strong electrostatic attraction force.
[0260]
As a result, the plurality of photocatalyst-carrying optical fibers 100 are temporarily implanted in a napped state at a high density, substantially perpendicular to the first surface 72a of the transmissive support member 72.
[0261]
The plurality of temporarily implanted photocatalyst-supporting optical fibers 100 give the transparent support member 72 the curing conditions of the curable resin adhesive 60 (heating with a thermosetting adhesive or leaving for a predetermined time with a room temperature curable adhesive). Thus, the curable resin adhesive 60 is cured, and the plurality of photocatalyst-carrying optical fibers 100 are permanently planted on the transmissive support member 72.
[0262]
By applying a vacuum to the flocked surface after curing, the excess photocatalyst-carrying optical fiber 100 that is not bonded can be removed.
[0263]
The light-transmissive conductive member 110 can be used as a heating means (electric heater) for the thermosetting or thermoplastic adhesive member 60.
[0264]
FIG. 10 shows an embodiment in which the light-transmissive conductive member 110 is used as a heating means (electric heater) for the thermosetting or thermoplastic adhesive member 60.
[0265]
As shown in FIG. 10, the heater power source PS-2 is connected to one end 110a and the other end 110b of the light transmissive conductive member 110 via the switch SW.
[0266]
When the switch SW is turned on, a current flows on the surface of the light transmissive conductive member 110, Joule heat is generated, and the light transmissive conductive member 110 can be heated.
[0267]
When the thermosetting adhesive member 60 is used, the light transmissive conductive member 110 can be used as a heater when heat-curing after temporary flocking.
[0268]
When the thermoplastic adhesive member 60 is used, the light-transmitting conductive member 110 is applied when the adhesive portion is heated and applied to the light-transmitting conductive member 110 or when the adhesive portion is heated and softened during electrostatic flocking to provide adhesiveness. It can be used as a heater.
[0269]
The present invention is not limited to the various embodiments of the present invention described above.
[0270]
For example, various components (portions) of the above-described various embodiments of the present invention can be arbitrarily combined.
[0271]
In the various embodiments of the present invention described above, at least one opening (through hole, communication portion, through hole) that communicates (penetrates) a pair of surfaces can be provided so that fluid can pass through the support member.
[0272]
For example, in another embodiment of the present invention shown in FIG. 11, the light transmissive support member can be provided with a plurality of openings communicating between a pair of surfaces.
[0273]
A photocatalyst device 700 shown in FIG. 11 is provided with a plurality of openings that communicate (penetrate) between the pair of surfaces 30a and 30b of the light transmissive support member 30 in the photocatalyst device 200 of FIG.
[0274]
That is, the photocatalyst device 700 implants a plurality of photocatalyst-supporting optical fibers 100 in the adhesive member layer 60 formed on the one surface 30a side of the light transmissive support member 75, and communicates between the pair of surfaces 30a and 30b and the adhesive member layer 60. , 120-n are provided.
[0275]
In FIG. 11, these openings 120-1,..., 120-n respectively extend from the vicinity of one side surface through which light from the light source 40 is introduced to the vicinity of the other side surface facing the one side surface. It extends linearly (slit).
[0276]
The shape of these openings is not limited to the linear shape shown in FIG. 11, but may be any shape such as a dot shape.
[0277]
In another embodiment of the present invention shown in FIG. 14, the photocatalyst device 720 includes a plurality of dot-shaped openings 120-1 that communicate the light-transmitting support member 75 between the pair of surfaces and the adhesive member layer 60. 120-n. Since other configurations are the same as those in FIG. 11, description of the other configurations is omitted for the sake of simplicity.
[0278]
The shape and size of each of the plurality of openings 120-1,..., 120-n and the distribution density of the plurality of openings viewed from the light-transmitting support member 75 can be used to treat gases, liquids, and the like containing contaminants. The light beam from the light source 40 so that the fluid should flow smoothly from the upstream F1 through the openings 120-1,..., 120-n of the light transmissive support member 75 toward the downstream F2 with less passage resistance. It is desirable to determine that the fluid can uniformly enter the plurality of photocatalyst-carrying optical fibers 100 and that the fluid uniformly contacts the plurality of photocatalyst-carrying optical fibers 100 (the photocatalyst cladding 20 in FIG. 2).
[0279]
In another embodiment of the present invention shown in FIG. 12, the photocatalytic device 750 includes a light scattering pigment, a glass having a different refractive index from the light transmissive support member 73, beads made of plastic, gas bubbles, and the like. The light scattering particles 130 are uniformly or non-uniformly dispersed in the light transmissive support member 73 to form a light scattering means.
[0280]
In FIG. 12, light scattering is performed by providing light sources 40 a and 40 b in the vicinity of the pair of side surfaces 73 c and 73 d of the light transmissive support member 73, and distributing a large number of light scattering particles 130 inside the light transmissive support member 73. Means. In this light scattering means, the number of light scattering particles 130 is sequentially increased from the side surface toward the center so that the number of light scattering particles 130 is small in the vicinity of the pair of side surfaces 73c and 73d and increases in the middle of the pair of side surfaces. The scattering particles are arranged at a distribution density so as to form a nonuniform distribution type gradation pattern of scattering particles.
[0281]
Therefore, in the embodiment of the present invention shown in FIG. 12, the light transmissive support member 73 is provided with a non-uniform dispersion type clay pattern of light scattering particles. Light rays from the pair of light sources 40a and 40b transmitted from the respective 73c and 73d toward the middle thereof were uniformly scattered and emitted from the pair of surfaces, and were grafted with the adhesive layer 60 on one surface 73a. It can be uniformly introduced into many photocatalyst-carrying optical fibers 100 (light incident end 10a in FIG. 2).
[0282]
A light reflecting film (light reflecting means) 80 is formed on the other surface 73 b of the light transmissive support member 73.
[0283]
Since the light sources 40a40b are arranged in the vicinity of the pair of side surfaces 73c and 73d of the light transmissive support member 73 as in the embodiment shown in FIG. 12, the number of light scattering particles is set to a pair to obtain uniform surface brightness. The distribution is such that it is larger in the center than in the vicinity of the side surfaces 73c and 73d.
[0284]
However, when the light source is disposed only on one of the side surfaces of the light-transmitting support member, the uneven distribution type of the gradation pattern is the opposite side surface where the light source does not exist from the side surface on which the light source is disposed. The light scattering particles are dispersed in the light transmissive support member 73 by a gradient pattern having a distribution density such that the number of light scattering particles increases toward the surface.
[0285]
The effect of obtaining a uniform surface brightness and uniformly introducing the transmitted light beam into the multiple photocatalyst-carrying optical fibers 100 is the same as when both the light sources 40a and 40b are used.
[0286]
Another embodiment of the present invention shown in FIG. 15 is a modification of the photocatalytic device 200 shown in FIG. In the photocatalyst device 200 shown in FIG. 3, the light source 40 is disposed only on one side surface 30c of the light transmissive support member 30, and a plurality of grooves 90 having substantially the same height (depth) are provided in order to obtain uniform surface brightness. A light scattering means having a gradation pattern that gradually increases from the side surface 30c toward the other side surface 30d is formed on the back surface 30b of the light transmissive support member 30.
[0287]
Unlike this, in the photocatalyst device 220 according to another embodiment of the present invention shown in FIG. 15, the light sources 40 a and 40 b are arranged in the vicinity of the pair of side surfaces 30 c and 30 d of the light transmissive support member 30. In order to obtain a uniform surface luminance, light is transmitted through a light scattering means having a gradation pattern in which a plurality of grooves 90 having substantially the same height (depth) are gradually increased from the pair of side surfaces 30c and 30d toward the center. It is formed on the back surface 30 b of the conductive support member 30.
[0288]
Another embodiment of the present invention shown in FIG. 16 is another modification of the photocatalytic device 200 shown in FIG.
[0289]
A photocatalyst device 230 according to another embodiment of the present invention shown in FIG. 16 is different from the photocatalyst device 200 shown in FIG. 3 in such a gradation that the width dimension of a plurality of grooves gradually increases in order to obtain uniform surface luminance. The light scattering means for the pattern is formed on the back surface 30 b of the light transmissive support member 30.
[0290]
That is, in the photocatalyst device 230 shown in FIG. 16, a plurality of grooves 90-1,..., 90- (n-1) in which the height (depth) is substantially equal but the width indicated by the reference sign "w" increases sequentially. , 90-n are formed on the back surface 30 b of the transmissive support member 30 from the one side surface 30 c on which the light source 40 is disposed toward the other side surface 30 d on which the light reflecting means 35 is disposed instead of the light source 40.
[0291]
Another embodiment of the present invention shown in FIG. 17 is still another modification of the photocatalytic device 200 shown in FIG.
[0292]
Unlike the photocatalyst device 200 shown in FIG. 3, the photocatalyst device 240 according to another embodiment of the present invention shown in FIG. 17 is such that the height dimension of a plurality of grooves gradually increases in order to obtain uniform surface luminance. The light scattering means of the gradation pattern is formed on the back surface 30 b of the light transmissive support member 30.
[0293]
That is, in the photocatalyst device 240 shown in FIG. 17, a plurality of grooves 90-1,..., 90- (n-1) whose widths are substantially the same but whose height (depth) indicated by the reference sign "ht" increases sequentially. , 90-n are formed on the back surface 30 b of the transmissive support member 30 from the one side surface 30 c on which the light source 40 is disposed toward the other side surface 30 d on which the light reflecting means 35 is disposed instead of the light source 40.
[0294]
Another embodiment of the present invention shown in FIG. 18 is a modification of the photocatalytic device 500 shown in FIG.
[0295]
In the photocatalyst device 500 shown in FIG. 6, a large number of scattering reflection portions coated with a paint containing light scattering particles as light scattering means are formed on the back surface 30 b of the light transmissive support member 30. The distribution density of the number of the scattered reflection portions is small in the scattering reflection portion 91-1 in the vicinity of the first side surface 72c and the second side surface 72d, and is intermediate between the first side surface 72c and the second side surface 72d. The number is increased in the scattering reflection portion 91-n.
[0296]
Unlike this, in the photocatalyst device 600 shown in FIG. 18, the scattering reflectors 91-1,. 91-n is formed on the back surface 30b of the transmissive support member 30 from the one side surface 30c on which the light source 40 is disposed toward the other side surface 30d on which the light reflecting means 35 is disposed instead of the light source.
[0297]
Further, a light reflection layer 80 is formed between a plurality of scattering reflection portions having different widths so that light rays do not leak from the back surface 30b.
[0298]
Another embodiment of the present invention shown in FIG. 19 is yet another modification of the photocatalytic device 200 shown in FIG.
[0299]
A photocatalyst device 860 according to another embodiment of the present invention shown in FIG. 19 is arranged on the first surface 30a side of the photocatalyst device 200 shown in FIG. 3 except the flocked region of the photocatalyst-carrying optical fiber 100 of the light transmissive support member 30. 1 light reflecting member 38(Light reflecting film)Are selectively formed.
[0300]
With this configuration, almost all of the photocatalyst-carrying optical fiber 100 is incident with light beams transmitted through the light-transmissive support member 30 and leaks to the outside from the first surface 30a excluding the flocked region of the photocatalyst-carrying optical fiber 100. Can be prevented, and the light utilization efficiency can be improved.
[0301]
In FIG. 19, the second light reflecting member 39 is formed almost entirely on the second surface 30 b side of the light transmissive support member 30, and the light transmitted through the light transmissive support member 30 is transmitted from the second surface 30 b side. Leakage to the outside can be further prevented, and the light utilization efficiency can be further improved.
[0302]
A photocatalyst device 880 according to another embodiment of the present invention shown in FIG. 20 has a photocatalyst film 23 excluding the flocked portions 100 and the flocked portions of a large number of photocatalyst-carrying optical fibers on the first surface 30a side in the photocatalyst device 200 shown in FIG. And.
[0303]
The photocatalytic device 880 is manufactured in the following order.
[0304]
(1) First, an uncured light transmissive adhesive layer 60 is formed on one surface 30 a of the light transmissive support member 30.
[0305]
(2) Next, a large number of optical fibers (bare bare core fibers 10) consisting only of the core 10 in which the photocatalytic cladding 22 is not formed on the uncured adhesive layer 60 are implanted by electrostatic flocking. At this time, one end of the bare core fiber 10 is pierced and thrown into the adhesive layer 60 by electrostatic attraction.
[0306]
(3) Next, an appropriate curing condition is applied to the uncured adhesive layer 60 to cure the adhesive layer, and the bare core fiber 10 is permanently fixed on the light-transmissive support member 30 in a raised state. To do.
[0307]
(4) Finally, the photocatalytic material is simultaneously applied to the adhesive layer 60 and the bare core fiber 10 from the surface 30a side.
[0308]
In order to apply the photocatalyst material, the photocatalyst material and the adsorbent to the adhesive layer 60 and the bare core fiber 10, the photocatalyst particles, a mixture of the photocatalyst particles and the adsorbent particles, and an adsorption carrying a plurality of photocatalyst particles The photocatalyst particles carrying the adsorbent particles or the plurality of adsorbent particles can be dispersed in a suitable binder and applied simultaneously to the adhesive layer 60 and the bare core fiber 10 by spraying, dipping, or the like. .
[0309]
As a result, the photocatalyst film 23 is formed in a region of the adhesive layer 60 where the bare core fiber 10 is not implanted, and at the same time, the photocatalyst film 22 is formed on the core surface of the bare core fiber 10.
[0310]
The photocatalyst film 22 formed on the core surface of the bare core fiber 10 corresponds to a photocatalyst clad represented by reference numeral 20 in FIG.
[0311]
In this embodiment, instead of using a photocatalyst-carrying optical fiber in which a photocatalyst cladding is formed in advance, the bare core fiber 10 is initially used, and the photocatalyst cladding 22 is applied to the bare core fiber 10 in the process of manufacturing the photocatalyst device 880. Note that the photocatalyst-carrying optical fiber 100 is formed.
[0312]
Further, it should be noted that the other end which is the free end of the photocatalyst-carrying optical fiber 100 is coated with the photocatalyst during the manufacturing process of the photocatalyst device 880.
[0313]
In this photocatalyst device 880, the light beam introduced into the light transmissive support member 30 from one or a pair of side surfaces is transmitted through the light transmissive support member 30 and gradually gradually through the light transmissive adhesive layer 60. Then, it leaks from one surface 30a as a leaked light beam.
[0314]
Next, the leaked light is introduced into the core 10 from one end of the photocatalyst-carrying optical fiber 100 and excites the photocatalyst cladding 22 or excites the photocatalyst film 23 formed in the non-flocked region of the photocatalyst-carrying optical fiber 100.
[0315]
In addition to entering the photocatalyst-carrying optical fiber 100 from one end which is the flocked end and leaking light in the middle of reaching the other end to excite the photocatalyst cladding, the light reaching the other end excites the photocatalyst coated on the other end. To do.
[0316]
In this photocatalyst device 880, since all the leaked light from one surface 30a can be used for excitation of the photocatalyst, the light use efficiency is extremely high.
[0317]
A photocatalyst device 890 of another embodiment of the present invention shown in FIG. 21 is arranged in a region excluding a large number of catalyst-supporting optical fibers 100 planted on the first surface 30 and the planted portion in the photocatalyst device 200 shown in FIG. The photocatalyst film 25 is provided.
[0318]
The photocatalytic device 890 is manufactured in the following order.
[0319]
(1) First, an uncured light transmissive adhesive layer 60 is formed on one surface 30 a of the light transmissive support member 30.
[0320]
(2) Next, using a large number of photocatalyst-carrying optical fibers 100 in which the photocatalyst cladding 20 is previously formed on the surface 10a of the core 10 shown in FIG. 2, the uncured adhesive layer 60 is implanted by electrostatic flocking. At this time, one end of the photocatalyst-carrying optical fiber 100 is pierced and thrown into the adhesive layer 60 by electrostatic attraction.
[0321]
(3) Next, a large number of photocatalysts such as photocatalyst particles, a mixture of photocatalyst particles and adsorbent particles, adsorbent particles carrying a plurality of photocatalyst particles, or photocatalyst particles carrying a plurality of adsorbent particles are contained. The particles are charged and applied to the uncured adhesive layer 60 that has already been charged with a reverse polarity by electrostatic attraction.
[0322]
(4) Finally, an appropriate curing condition is applied to cure the adhesive layer 60, and the photocatalyst-carrying optical fiber 100 is permanently fixed to the light-transmitting support member 30 in a raised state and a large number of photocatalysts are contained. The photocatalyst film 25 (a portion including a large number of particles containing the photocatalyst in the vicinity of the surface of the adhesive layer 60) in which the above particles are permanently fixed to the adhesive layer 60 is formed.
[0323]
In this photocatalyst device 890, since the other end, which is the free end of the photocatalyst-carrying optical fiber 100, is not coated with a photocatalyst, it is desirable to further form a photocatalyst on the other end of the photocatalyst-carrying optical fiber 100.
[0324]
For example, an uncured adhesive is applied to the other end of the plurality of photocatalyst-supporting optical fibers 100 in the photocatalyst device 890 before the adhesive layer 60 is cured, and a large number of particles containing the photocatalyst are electrostatically adsorbed to the adhesive layer 60. At the same time, it can be adsorbed to the adhesive at the other end.
[0325]
By applying curing conditions for the adhesive layer 60 and the adhesive at the other end, both adhesives can be cured almost simultaneously, and a photocatalyst can be formed at the other end of the photocatalyst-carrying optical fiber 100.
[0326]
In the photocatalyst device 890, almost all of the leaked light from the one surface 30a can be used for excitation of the photocatalyst, as in the photocatalyst device 880 described above, and the light use efficiency is extremely high.
[0327]
In another embodiment of the present invention shown in FIG. 22, a plurality of photocatalyst-carrying optical fibers comprising a core and a photocatalyst clad (or photocatalyst film) that includes a photocatalyst and is coated on the core, and a plurality of the photocatalyst-carrying optical fibers. And at least one photocatalyst device having a support member in which the hair is implanted is housed in a reaction vessel having a fluid introduction port and a discharge port.
[0328]
In the embodiment shown in FIG. 3, a plurality of photocatalytic devices 300 flow into the reaction vessel (reaction housing) H, and are arranged in parallel in the direction of the upstream F1 and the downstream F2, and a highly efficient photocatalytic reaction device is illustrated. The
[0329]
The photocatalyst device is introduced from the fluid introduction port, and the fluid discharged from the discharge port is arranged so as to flow across the flocking direction of the photocatalyst-carrying optical fiber.
[0330]
The photocatalyst device includes a first photocatalyst device planted with a first photocatalyst-carrying optical fiber and a second photocatalyst device planted with a second photocatalyst-carrying optical fiber, the first photocatalyst-carrying optical fiber and the second photocatalyst device The first photocatalyst device and the second photocatalyst device are arranged so that the photocatalyst-carrying optical fibers face each other.
[0331]
In the photocatalytic reaction device shown in FIG. 22, two photocatalytic devices 300 are arranged in parallel inside the reaction vessel H so that the photocatalyst-carrying optical fibers 100 face each other.
[0332]
A fluid containing contaminants is introduced into the reaction vessel H from the fluid inlet H1, and in FIG. 20, the fluid that has contacted the pair of photocatalyst-supporting optical fibers 100 and decomposed the contaminants flows into the reaction vessel H from the fluid outlet H2. It is discharged outside.
[0333]
The photocatalytic reaction device according to another embodiment of the present invention shown in FIG. 23 includes a first photocatalyst device in which a first photocatalyst-carrying optical fiber is flocked and a second photocatalyst device in which a second photocatalyst-carrying optical fiber is flocked. And the first photocatalyst device and the second photocatalyst device are arranged so that the first photocatalyst-carrying optical fiber and the second photocatalyst-carrying optical fiber face each other.
[0334]
In the photocatalyst device 800 shown in FIG. 12 having the photocatalyst-supporting optical fiber 100 on a pair of surfaces, a plurality of photocatalyst devices 800 having a plurality of openings 120 communicating with the pair of surfaces are accommodated in a reaction vessel H. is there.
[0335]
A partition denoted by reference numeral H5 is provided in close contact between the reaction vessel H and the photocatalyst device 800, and the fluid passes only through the plurality of openings 120 by the partition H5.
[0336]
In FIG. 23, two photocatalyst devices 800 are arranged in series inside the reaction vessel H so that the photocatalyst-carrying optical fibers 100 face each other. The plurality of photocatalytic devices are arranged in multiple stages with respect to the fluid flow direction.
[0337]
In FIG. 23, the light source 40 and the lamp house 4 that accommodates the light source are arranged at arbitrary locations outside the reaction vessel H, and the optical fiber 140 for light transmission is connected to the light source 40 and the light transmissive member 30 of each photocatalytic device 800. It is arranged so as to be interposed between the pair of side surfaces 30d and 30d.
[0338]
A fluid containing contaminants is introduced into the reaction vessel H from the fluid introduction port H1, and this fluid comes into contact with the first photocatalyst-supporting optical fiber 100 of the first photocatalyst device 800 on the upstream F1 side, and then the first photocatalyst. The second photocatalyst-carrying optical fiber 100 of the first photocatalyst device 800 is brought into contact with the second photocatalyst device 800 through a plurality of openings 120 communicating with the pair of surfaces 30 a and 30 b of the device 800.
[0339]
Next, after the fluid contacts the third photocatalyst-carrying optical fiber 100 of the second photocatalyst device 800 on the downstream F2 side, a plurality of openings 120 communicating the pair of surfaces 30a and 30b of the second photocatalyst device 800 are provided. It passes through and contacts the fourth photocatalyst-supporting optical fiber 100 of the second photocatalyst device 800.
[0340]
The fluid in which the pollutants are decomposed is discharged to the outside of the reaction vessel H from the fluid discharge port H2.
[0341]
A normal optical fiber for optical transmission that does not carry a photocatalyst between the photocatalyst device in which the photocatalyst carrying optical fiber 100 is implanted on the surface of the transmissive support member and the light source as in the various embodiments of the present invention described above. Alternatively, an optical fiber cable may be interposed.
[0342]
That is, in another embodiment of the present invention shown in FIG. 24, for example, a photocatalyst in which a large number of photocatalyst-supporting optical fibers 100 are planted on the first surface 30a of the plate-like light-transmitting support member 30 shown in FIGS. Using the apparatus 200, a light emitting end of a normal optical transmission optical fiber or an optical fiber cable is disposed close to the first side face 30c.
[0343]
On the other hand, the light incident end of the optical fiber for optical transmission or the optical fiber cable is separated from the photocatalyst device 200 and is disposed close to the light source 40 accommodated in the light box 45 installed at a location suitable for maintenance and inspection. Therefore, waterproofing and insulation measures are almost unnecessary.
[0344]
A reflective member (not shown) is disposed on the second side surface 30d opposite to the first side surface 30c.
[0345]
Thus, by interposing the optical fiber or the optical fiber cable 140 between the light source 40 and the transmissive support member 30, a light source comprising a quartz or glass tube in which the inside is normally evacuated and sealed with mercury and a discharge electrode. 40 and its lighting circuit can be installed in an arbitrary place such as indoors away from the photocatalyst device 200.
[0346]
Therefore, when the fluid to be processed is a liquid, when the fluid is a gas containing moisture, or when the photocatalyst device 200 is disposed outdoors, the light source 40 and the electrical system such as the lighting circuit are not related to the location where the fluid processing is performed. Since the electrical system and the light source 40 can be easily installed and replaced, insulation measures between the light source 40 and its lighting circuit, that is, leakage prevention measures are facilitated.
[0347]
In all the embodiments of the present invention described above, the output end of the light source 40 or the optical fiber for light transmission 140 is disposed in the vicinity of the side surface of the light transmissive support member, and light is transmitted from the side surface into the light transmissive support member. However, instead of this, prism means may be used, and light emitted from the light source 40 or the output end of the optical fiber for light transmission 140 may be introduced into the light transmissive support member via the prism means. .
[0348]
In still another embodiment of the present invention shown in FIGS. 25 and 26, a light beam emitted from the light source 40 via the prism means 150 is introduced from the periphery (periphery) of the surface of the light transmissive support member into the inside thereof. .
[0349]
In the photocatalyst device 900 shown in FIGS. 25 and 26, the light transmissive support member 30 shown in FIG. 3 is used as the light transmissive support member. As the prism means 150, a prism 150 having a triangular cross section shown in FIGS. 25 and 26 is disposed around the periphery (periphery) of the back surface 30b of the light transmissive support member 30.
[0350]
The horizontal first surface 150a of the triangular prism 150 is extended over the length of one side surface 30c of the light transmissive support member 30 and is disposed adjacent to the periphery of the back surface 30b.
[0351]
The second surface 150 b perpendicular to the first surface 150 a of the triangular prism 150 introduces the light beam L from the linear light source 40 disposed close to this surface into the prism 150.
[0352]
The light beam L introduced into the prism 150 is reflected by the inclined third surface 150c, and this reflection changes the direction of the light beam L to reach the horizontal first surface 150a. The light is introduced into the interior of 30 and is repeatedly transmitted to the second side surface 30d of the light-transmissive support member 30 while undergoing total internal reflection.
[0353]
The light beam L is scattered by the gradation / pattern type light scattering means 90 formed on the back surface 30b and is emitted from the front surface 30a of the light-transmissive support member 30 with substantially uniform luminance.
[0354]
The emitted light is incident from one end, which is the flocked end of the photocatalyst-carrying optical fiber 100, through the adhesive layer 60, leaks in the middle of reaching the other end, and excites the photocatalyst cladding.
[0355]
The prism 150 may also be provided around the front surface 30 a of the light transmissive support member 30.
[0356]
As shown in FIG. 6, when a pair of light sources is provided, the pair of prisms are arranged around the opposing surfaces of the light-transmitting support member as described above.
[0357]
In still another embodiment of the present invention shown in FIG. 27, light rays emitted from the light source 40 via the prism means 150 are transmitted from the periphery (periphery) of the surface of the light transmissive support member to the inside thereof as in FIGS. It has been introduced.
[0358]
In the embodiment of FIGS. 25 and 26, the light source 40 is disposed close to the prism means 150 so as to face one side 150b of the prism means 150, whereas in the embodiment of the present invention shown in FIG. Is arranged at a location away from the prism 150.
[0359]
As shown in FIG. 27, the light source 40 is interposed between the optical fiber and the optical fiber cable 140 and the prism 150.
[0360]
In FIG. 27, one side of the prism 150 in which a plurality of optical output ends of a plurality of optical fibers and the multi-core optical fiber cable 140 are linearly extended along the width of the side surface 30c of the light transmitting support member 30. It is arranged in a straight line corresponding to 150b.
[0361]
In addition, a plurality of light incident ends of the plurality of optical fibers and the multi-core optical fiber cable 140 are arranged in a circular shape in accordance with the shape of the light source corresponding to the light source 40, for example.
[0362]
The other parts in FIG. 27 are the same as those in FIGS.
[0363]
Still another embodiment of the present invention shown in FIG. 28 is one in which the light source 40 is arranged on the lower side of the light transmissive support member 30 of the photocatalytic device 200 using the prism means 150 in the embodiment shown in FIG. is there.
[0364]
That is, in FIG. 28, as shown in the figure, one vertical side of the prism means 150 is arranged in close proximity to the side surface 30c so as to correspond to the side surface 30c of the light-transmitting support member 30, and close to the horizontal side perpendicular to this vertical side. The light source 40 is arranged.
[0365]
Also in this case, the light source 40 can be installed at an appropriate location away from the photocatalytic device 200 by interposing a plurality of optical fibers and multi-core optical fiber cables between the light source 40 and the prism means 150.
[0366]
In another embodiment of the present invention shown in FIG. 29, the light source 40 is arranged on the second surface side 30b which is the back surface of the photocatalytic device 200 shown in FIG.
[0367]
In FIG. 29, the light beam from the light source 40 irradiates the photocatalyst apparatus 200 from the back surface 30b side either directly or by reflecting the reflecting mirror 52.
[0368]
This light beam passes through the light transmissive support member 30 and is incident from the light incident end of the photocatalyst-carrying optical fiber 100 planted in the adhesive layer 60 via the adhesive layer 60 formed on the front surface 30a.
[0369]
Unlike the various embodiments of the present invention described above, a light beam from a light source, natural light, sunlight, or the like may be incident from a free end of a support in which a large number of photocatalyst-carrying optical fibers 100 are implanted.
[0370]
In this case, any non-light transmissive member (opaque member) or light transmissive member (transparent member, translucent member) having no light transmissive property may be used as the support member.
[0371]
That is, in another embodiment of the present invention shown in FIG. 30, a large number of photocatalysts are formed on one surface 74a of a non-light transmissive or transmissive support member 74 having a pair of opposed surfaces 74a and 74b via the adhesive layer 60. A photocatalyst device 820 in which the supported optical fiber 100 is planted is used to irradiate light rays from the light source 40, natural light, sunlight, and the like toward the photocatalyst-supported optical fiber 100 side.
[0372]
It is desirable that the adhesive layer 60 also contains a large number of photocatalysts such as photocatalyst particles.
[0373]
The supporting member 72 is not limited to an arbitrary rigid member made of an inorganic material such as an organic resin material, glass, ceramic, metal, etc., which has no flexibility, but a woven fabric, a nonwoven fabric or other woven fabric, paper, plastic film, rubber, metal foil Any flexible member having flexibility such as the above may be used.
[0374]
In the various embodiments described above, it is intended to assemble the photocatalyst device at the factory with components such as the support member, the photocatalyst-supporting optical fiber, and the adhesive member. However, the support member is applied to the concrete, tile, plastic, etc. It may be a pre-existing thing.
[0375]
For example, the supporting member 74 of the photocatalytic device 840 shown in FIG. 31 is an existing fixed object such as a soundproof wall of a road, an outer wall, an inner wall, a ceiling, a floor, or a pillar of a building.
[0376]
In an arbitrary site where the existing support member 74 is present, the uncured liquid adhesive 60 is applied to the surface 74a.
[0377]
Using a portable or movable electrostatic flocking device, a large number of photocatalyst-carrying optical fibers are attached to the surface 74a grounded by electrostatic attraction force, and the uncured liquid adhesive 60 is cured by heating or the like. Thus, a large number of photocatalyst-carrying optical fibers can be permanently fixed on the surface of an existing object and can be implanted.
[0378]
This type of portable or movable electrostatic flocking device typically comprises a high-voltage power supply and a flocking fiber storage box with a high-voltage electrode that can be held by hand (handheld). It accommodates a large number of photocatalyst-supporting optical fibers and has a large number of openings.
[0379]
By turning on the power switch of the high-voltage power source, a large number of photocatalyst-carrying optical fibers fly and propel toward the charged and grounded surface 74 a and are thrown onto the adhesive layer 60.
[0380]
In photocatalyst apparatuses 860 and 880 of still another embodiment shown in FIGS. 32 and 33, photocatalyst-carrying optical fibers 110 and 120 each having condensing means 15 and 16 at free ends that are not implanted as photocatalyst-carrying optical fibers are provided. Used.
[0381]
As shown in FIGS. 32 and 33, the photocatalyst devices 860 and 880 include an arbitrary support member that is opaque (non-light transmissive), transparent, or translucent (light transmissive), and an adhesive formed on the support member 76. It comprises a layer 60 and a plurality of photocatalyst-carrying optical fibers 110 and 120 having flocking means 15 and 16 implanted in the adhesive layer 60.
[0382]
Similar to the photocatalyst-carrying optical fiber 100 shown in FIG. 2, the photocatalyst-carrying optical fibers 110 and 120 include a core 10 and a photocatalyst coated with the core 10 or a photocatalyst clad 20 further containing an adsorbent.
[0383]
The photocatalyst-carrying optical fibers 110 and 120 are different from the photocatalyst-carrying optical fiber 100 shown in FIG. 2, and the photocatalyst-carrying optical fibers 110 and 120 receive various light beams L2 such as light from an external light source, indoor light, and sunlight. Condensing means 15 and 16 made of a light transmissive material similar to that of the core 10 are provided at the light incident end 10a (free end).
[0384]
The other end (fixed end) 10 b facing the light incident end 11 a is fixed to the adhesive layer 60.
[0385]
The condensing means 15 shown in FIG. 32 is composed of a substantially spherical light transmissive condensing element, and the condensing means 16 shown in FIG. 33 is a light transmissive condensing element having a substantially funnel shape. Therefore, various light rays L2 incident at various angles compared to a light incident end obtained by simply cutting a long optical fiber can be received at a very wide angle and function as a kind of wide angle lens.
[0386]
For example, in a photocatalyst device using a light transmissive material as the support member 30 such as the photocatalyst device 200 shown in FIGS. 1 and 3 and the photocatalyst device 900 shown in FIGS. 25 and 26, the side surface 30c of the support member 30 (FIGS. 3) Or the light L from the artificial light source 40 is introduced from the periphery or the periphery (FIGS. 25 and 26) of the surface 30b into the light transmissive support member 30, and the introduced transmitted light is directed to the surface 30a side where the hair is implanted. The light is emitted from the surface 30a and irradiated to one end where the photocatalyst-carrying optical fiber 100 is implanted.
[0387]
However, even in this type of photocatalyst device, the other end of the photocatalyst-supporting optical fiber 100, which is a free end of the photocatalyst-carrying optical fiber 100, is irradiated with light from other artificial light sources, light from a general illumination light source, and sunlight. Can be made.
[0388]
That is, this type of photocatalytic device has one end of the photocatalyst-carrying optical fiber 100 in which the hair is implanted (reference numeral 10c in FIG. 2) or the other end which is not a flocked end (reference numeral 10d in FIG. 2). The light from the light source 40 dedicated to the photocatalyst device or the ambient light can be used for excitation and activation of the photocatalyst-carrying optical fiber 100.
[0389]
For example, when the ambient environment is bright during the daytime, the light source 40 is turned off and ambient light incident from the free end of the photocatalyst-carrying optical fiber 100 is used, and when it is dark at night, the dedicated light source 40 is turned on. A light beam incident from the flocked end of the photocatalyst-carrying optical fiber 100 can be used.
[0390]
When the dedicated light source 40 is turned on even when the surrounding environment is bright, the ambient light and the dedicated light can introduce light from a pair of ends of the photocatalyst-carrying optical fiber 100. It becomes.
[0390]
The photocatalytic devices 860 and 880 shown in FIGS. 32 and 33 also use a light transmissive material as the support member 76, and light from the dedicated artificial light source is transmitted from the light transmissive support member 76 from the side surface or the periphery of the support member 76, or the periphery. Introduced into the free end 10c of the photocatalyst-carrying optical fibers 110 and 120, the spherical and funnel-shaped light condensing means 15 and 16 and the fixed end 10d implanted with the light beam from the photocatalyst-carrying optical fiber 110, The photocatalyst cladding 20 can be efficiently activated by being introduced into the 120 cores 10.
[0392]
Various embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and various modifications, based on the spirit of the present invention and the claims, It should be noted that design changes and improvements are possible.
[Brief description of the drawings]
FIG. 1 is a conceptual perspective view illustrating an embodiment of a photocatalytic device 200 of the present invention.
FIG. 2 is a conceptual enlarged perspective view illustrating a representative example of a photocatalyst-carrying optical fiber 100 used in the present invention.
3 shows a photocatalyst device 300 according to another embodiment of the present invention in which light scattering means and the like are added to the photocatalyst device 200 shown in FIG. 1, and is a conceptual cross-sectional view along the line AA in FIG. .
FIG. 4 is a conceptual cross-sectional view of a photocatalyst device 300 according to another embodiment of the present invention showing various modifications of the photocatalyst-carrying optical fiber.
FIG. 5 is a conceptual cross-sectional view of a photocatalyst device 400 according to another embodiment of the present invention in which the shape of the light transmissive support member is tapered.
FIG. 6 is a conceptual cross-sectional view of a photocatalyst device 500 according to another embodiment of the present invention in which a light source is disposed on each of a pair of side surfaces.
7 is a conceptual cross-sectional view of a photocatalyst device 600 according to another embodiment of the present invention in which a light-transmissive conductive member is added to the photocatalyst device 500 shown in FIG.
8 is a conceptual cross-sectional view of a photocatalyst device 410 according to another embodiment of the present invention in which a light transmissive conductive member is added to the photocatalyst device 400 shown in FIG.
9 is a conceptual cross-sectional view illustrating one method for manufacturing the photocatalyst device 600 shown in FIG. 7 by an electrostatic flocking method.
10 is a conceptual cross-sectional view illustrating another method for manufacturing the photocatalyst device 600 shown in FIG. 7 by an electrostatic flocking method.
FIG. 11 is a conceptual cross-sectional view showing a photocatalyst device 700 according to another embodiment of the present invention having a plurality of openings communicating between a pair of surfaces.
FIG. 12 is a conceptual cross-sectional view showing a photocatalytic device 750 of another embodiment of the present invention including a large number of light scattering particles.
FIG. 13 is a conceptual cross-sectional view showing a photocatalyst device 800 according to another embodiment of the present invention provided with a photocatalyst carrying optical fiber on a pair of surfaces.
FIG. 14 is a conceptual cross-sectional view showing a photocatalyst device 720 according to another embodiment of the present invention having a plurality of openings communicating between a pair of surfaces.
FIG. 15 is a conceptual cross-sectional view showing a photocatalytic device 220 according to another embodiment of the present invention.
FIG. 16 is a conceptual cross-sectional view showing a photocatalytic device 230 according to another embodiment of the present invention.
FIG. 17 is a conceptual cross-sectional view showing a photocatalytic device 240 according to another embodiment of the present invention.
FIG. 18 is a conceptual cross-sectional view showing a photocatalytic device 620 according to another embodiment of the present invention.
FIG. 19 is a conceptual cross-sectional view showing a photocatalytic device 820 according to another embodiment of the present invention.
FIG. 20 is a conceptual cross-sectional view showing a photocatalytic device 880 according to another embodiment of the present invention.
FIG. 21 is a conceptual cross-sectional view showing a photocatalytic device 890 according to another embodiment of the present invention.
22 is a conceptual cross-sectional view illustrating an example of a photocatalytic reaction device in which a plurality of photocatalytic devices are accommodated in a reaction vessel H. FIG.
FIG. 23 is a conceptual cross-sectional view illustrating another example of a photocatalytic reaction device in which a plurality of photocatalytic devices are accommodated in a reaction vessel H.
FIG. 24 is a conceptual schematic perspective view showing another embodiment of the present invention in which an optical fiber for optical transmission and an optical fiber cable 140 are arranged between a side surface of a photocatalyst device and a light source.
FIG. 25 shows another embodiment of the present invention in which the prism means is arranged around the surface of the light transmissive support member and the light beam from the light source is introduced into the light transmissive support member via the prism means. It is a schematic perspective view explaining the photocatalyst apparatus 900 of a form.
26 is a schematic cross-sectional view taken along the line BB in FIG. 25. FIG.
FIG. 27 shows another embodiment of the present invention in which prism means is arranged around the surface of the light-transmitting support member, and an optical fiber for transmission and an optical fiber cable 140 are arranged between the surface and the light source. It is a conceptual schematic perspective view which shows a form.
FIG. 28 shows another embodiment of the present invention in which the prism means is arranged in the vicinity of the side surface of the light transmissive support member and the light beam from the light source is introduced into the light transmissive support member via the prism means. It is a schematic perspective view explaining the photocatalyst apparatus 900 of a form.
FIG. 29 shows a photocatalyst-carrying light in which a light source is arranged facing the back surface of the light transmissive support member of the photocatalyst device 200, and hair is planted on the front surface of the light transmissive support member by the light from the light source that has passed through the light transmissive support member. It is a conceptual sectional view showing other embodiments of the present invention constituted so that a fiber may be irradiated.
FIG. 30 is a conceptual cross-sectional view showing another embodiment of the present invention configured to irradiate a photocatalyst-carrying optical fiber with light rays from the front side of the support member of the photocatalyst device 820 in which the photocatalyst-carrying optical fiber is implanted. .
FIG. 31 shows another embodiment of the present invention in which the photocatalyst-carrying optical fiber is irradiated with light from the front side of the support member of the photocatalyst device 840 in which the photocatalyst-carrying optical fiber is flocked. It is a conceptual sectional view showing a form.
FIG. 32 is a conceptual view showing an enlarged part of a photocatalyst device 860 according to another embodiment of the present invention in which a photocatalyst-carrying optical fiber is flocked to a support member and a condensing means is provided at the free end of the photocatalyst-carrying optical fiber. FIG.
FIG. 33 is an enlarged conceptual view showing a part of a photocatalyst device 880 according to another embodiment of the present invention in which a photocatalyst-carrying optical fiber is planted on a support member and a condensing means is provided at the free end of the photocatalyst-carrying optical fiber. FIG.
[Explanation of symbols]
100, 100a to 100f, 110, 120: Photocatalyst carrying optical fiber
200, 300, 400, 500, 600: Photocatalytic device
10: Core (of photocatalyst-carrying optical fiber)
10a: Core surface (of photocatalyst-carrying optical fiber)
10c: One end of the photocatalyst-carrying optical fiber
10d: the other end (of the photocatalyst-carrying optical fiber)
15, 16: Condensing means
20: Photocatalyst cladding (of photocatalyst-carrying optical fiber)
20a: Photocatalyst particles
20b: Binder
20c: Adsorbent particles
30, 70, 72: Light transmissive support member (plate-like support member)
30a, 70a, 72a: one main surface
30b, 70b, 72b: the other main surface
30c, 70c, 72c: One side
30d, 70d, 72d: the other side
35, 90: Reflective member (for light transmissive support member)
40, 40a, 40b: Light source (linear light source)
50, 50a, 50b: Reflective member (for light source) (reflector, reflector)
60: Adhesive member (adhesive layer)
60a: surface of the adhesive member
90, 91, 130: Light scattering means (light direction changing means, light diffusing means, light scattering groove, light scattering layer, etc.)
110: Light transmissive conductive member (light transmissive conductive film)
150: Prism
L: Light ray from light source
L3: incident light (introduced at one end of the photocatalyst-carrying optical fiber)
HP: Storage box (hopper)
ME: Electrode with opening
PS: High voltage power supply
PS-2: Power supply for heater
SW: Switch means
H: Reaction vessel
H1: Fluid inlet (for reaction vessel)
H2: Fluid outlet (in reaction vessel)
F1: Upstream of the fluid (on the fluid inlet side)
F2: Downstream of the fluid (on the fluid outlet side)

Claims (11)

A light guide member (light transmissive support member) for a surface light source having a surface and a side surface, transmitting a light beam incident from the side surface as a light incident portion by total internal reflection and emitting the light beam from the surface;
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface for example Bei the door,
(A) The photocatalyst-carrying optical fiber is flocked or raised on the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
(B) The photocatalyst device in which the photocatalyst-carrying optical fibers are arranged substantially perpendicular to the surface . A light guide member (light transmissive support member) for a surface light source that has a surface and side surfaces, transmits light incident from the periphery of the surface as a light incident portion by total internal reflection, and emits the light from the surface; ,
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface for example Bei the door,
(A) The photocatalyst-carrying optical fiber is flocked or raised on the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
(B) The photocatalyst device in which the photocatalyst-carrying optical fibers are arranged substantially perpendicular to the surface . A light-guiding member for a surface light source (light transmissive support) that has a surface and a side surface and transmits a light beam incident from the periphery of the surface or the side surface as a light incident part by total internal reflection and is emitted from the surface. Member), and
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface When,
A light scattering / light direction changing means for directing a light beam transmitted through the light guide member (the light transmissive support member) to the surface;
The photocatalyst-carrying optical fiber is arranged by flocking or raising the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
The photocatalyst-carrying optical fibers are arranged substantially perpendicular to the surface;
The light scattering / light direction changing means includes: (a) a plurality of grooves or protrusions or prisms formed on the surface of the light guide member (the light transmissive support member); and (b) the light guide member (the light). A plurality of light scattering printed portions or rough surfaces formed on the surface of the transparent support member), or (c) a plurality of light scattering particles dispersed inside the light guide member (the light transparent support member). A photocatalytic device comprising: A light-guiding member for a surface light source (light transmissive support) that has a surface and a side surface and transmits a light beam incident from the periphery of the surface or the side surface as a light incident part by total internal reflection and is emitted from the surface. Member), and
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface When,
A light scattering / light direction changing means for directing a light beam transmitted through the light guide member (the light transmissive support member) to the surface;
The photocatalyst-carrying optical fiber is arranged by flocking or raising the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
The photocatalyst-carrying optical fibers are arranged substantially perpendicular to the surface;
(A) a plurality of grooves, protrusions, or prisms formed on one surface of the light guide member (the light transmissive support member) and having a varying number density. b) A plurality of grooves, protrusions or prisms formed on one surface of the light guide member (the light-transmitting support member) and changing in height, and (c) formed on one surface of the support member. A plurality of grooves or protrusions or prisms whose widths are changed, and (d) a plurality of lights formed on one surface of the light guide member (the light-transmitting support member) and whose number distribution density is changed. (E) a plurality of light scattering printing parts or rough surfaces formed on one surface of the light guide member (the light-transmitting support member) and having varying widths, or (f) The distribution density of the number dispersed inside the support member changes. That consists of a plurality of light scattering particles, having a gradation pattern, the photocatalytic device. A light-guiding member for a surface light source (light transmissive support) that has a surface and a side surface and transmits a light beam incident from the periphery of the surface or the side surface as a light incident part by total internal reflection and is emitted from the surface. Member), and
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface When,
The light guide member setting a (the light transmissive support member) fluid can pass to an at least one opening or through-hole,
(A) The photocatalyst-carrying optical fiber is flocked or raised on the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
(B) The photocatalyst device in which the photocatalyst-carrying optical fibers are arranged substantially perpendicular to the surface . A light-guiding member for a surface light source (light transmissive support) that has a surface and a side surface and transmits a light beam incident from the periphery of the surface or the side surface as a light incident part by total internal reflection and is emitted from the surface. Member), and
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface And consist of
The photocatalyst-carrying optical fiber is arranged by flocking or raising the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
The photocatalyst apparatus, wherein the photocatalyst-supporting optical fibers are arranged substantially perpendicularly to the surface .
The optical catalyst-carrying optical fiber to form a placement photocatalytic in the region of the surface not film or light reflection film, a photocatalytic device. A light-guiding member for a surface light source (light transmissive support) that has a surface and a side surface and transmits a light beam incident from the periphery of the surface or the side surface as a light incident part by total internal reflection and is emitted from the surface. Member), and
Becomes because the photocatalyst cladding comprising an optical fiber core and partially or entirely coated photocatalyst or more adsorbents to the optical fiber core (photocatalyst film), a plurality of the photocatalyst carrying optical fibers with placed on said surface When,
A condensing lens is disposed at the free end of the photocatalyst-carrying optical fiber,
Thereby, light can be introduced from both the fixed end of the photocatalyst-carrying optical fiber and the free end of the photocatalyst-carrying optical fiber via the condenser lens ,
(A) The photocatalyst-carrying optical fiber is flocked or raised on the surface, or at least one end (light incident end) of the photocatalyst-carrying optical fiber is bonded or fixed to the surface, or
(B) The photocatalyst device in which the photocatalyst-carrying optical fibers are arranged substantially perpendicular to the surface . A photocatalytic device according to any one of claims 1 to 7,
A photocatalytic reaction device comprising: a light source that causes a light beam that excites the photocatalyst to enter the light guide member (the light transmissive support member) from the light incident portion that is formed around the surface or the side surface. A photocatalytic device according to any one of claims 1 to 7,
A light source that makes a light beam that excites the photocatalyst enter the inside of the light guide member (the light transmissive support member) from the light incident portion that is formed around the surface or the side surface;
The light source is (a) disposed on the side surface serving as a light beam introduction portion, (b) disposed on the side surface serving as a light beam introduction portion via a prism, and (c) the surface serving as a light beam introduction portion via a prism. (D) arranged in the light beam introducing portion via an optical fiber for light transmission, or (e) photocatalytic reaction arranged in the light beam introducing portion via an optical fiber for light transmission and a prism. apparatus. A photocatalytic reaction device in which the photocatalytic device according to any one of claims 1 to 7 is accommodated in a reaction vessel having a fluid inlet and a fluid outlet. The photocatalyst device according to any one of claims 1 to 7, wherein the photocatalyst-supporting optical fiber has a shape selected from at least one of a linear shape, a curved shape, a U shape, a coil shape, and a branched shape. A photocatalytic device characterized by the above.

Images