JP2005230757A - Photocatalyst carrier - Google Patents

Photocatalyst carrier Download PDF

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JP2005230757A
JP2005230757A JP2004045819A JP2004045819A JP2005230757A JP 2005230757 A JP2005230757 A JP 2005230757A JP 2004045819 A JP2004045819 A JP 2004045819A JP 2004045819 A JP2004045819 A JP 2004045819A JP 2005230757 A JP2005230757 A JP 2005230757A
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photocatalyst
porous
porous adsorbent
substrate
carrier
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Akio Mukai
昭雄 向井
Akihiro Kato
陽弘 加藤
Toshimichi Nakamura
利道 中村
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Okaya Electric Industry Co Ltd
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Okaya Electric Industry Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To realize a photocatalyst carrier capable of securing a large surface area of a photocatalyst carried on a base body. <P>SOLUTION: This photocatalyst carrier 10 is composed by fixing a large number of translucent porous adsorbing materials 14 on the surface of the base body 12 via a translucent adhesive 16, wherein the base body 12 is composed of an appropriate material like glass, a resin or a metal, and the adsorbing material 14 holds the photocatalyst comprising anatase-type titanium oxide (TiO<SB>2</SB>) or the like, The porous adsorbing material 14 is composed of porous glass, such as silica gel or Vycor glass. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、基体に光触媒を担持させて成る光触媒担持体に係り、特に、基体に担持させる光触媒の表面積を大きく確保することのできる光触媒担持体に関する。   The present invention relates to a photocatalyst carrier formed by supporting a photocatalyst on a substrate, and more particularly to a photocatalyst carrier that can ensure a large surface area of the photocatalyst supported on the substrate.

酸化チタン（ＴｉＯ２）等の光触媒は、紫外線等の光の照射を受けると活性化して強力な酸化還元作用を生じ、窒素酸化物（ＮＯＸ）、硫黄酸化物（ＳＯＸ）等の有害化合物や汚濁物等を効果的に分解する作用を発揮するものであることから、基体に光触媒を担持させて成る光触媒担持体を用いて空気や水の浄化を行う試みが成されている。
ところで、上記光触媒による有害化合物や汚濁物等の分解は、これら有害化合物や汚濁物等が光触媒に接触することによって生じる作用である。従って、光触媒による空気や水の浄化能力を向上させるためには、光触媒の表面積をできるだけ拡大することが望ましい。 Photocatalysts such as titanium oxide (TiO 2 ) are activated when irradiated with light such as ultraviolet rays to produce a strong redox effect, and harmful compounds such as nitrogen oxides (NO X ) and sulfur oxides (SO X ) Attempts have been made to purify air and water by using a photocatalyst carrying member in which a photocatalyst is carried on a substrate.
By the way, decomposition of harmful compounds, pollutants and the like by the photocatalyst is an effect caused by contact of these harmful compounds and pollutants with the photocatalyst. Therefore, in order to improve the ability of the photocatalyst to purify air and water, it is desirable to increase the surface area of the photocatalyst as much as possible.

そこで、本出願人は、先に、基体の表面に、表面を光触媒で被覆された多数の繊維状体を、上記基体表面に対して立設状態で被着して成る光触媒担持体を提案した（特開２００３−２０５２４４号）。
図９に示すように、この光触媒担持体60は、ガラス、樹脂、金属等の適宜な材料より成る平板状の基体62の表面に、アナターゼ型の酸化チタン（ＴｉＯ２）より成る光触媒64で被覆された多数の細長い繊維状体66が、接着剤68を介して、上記基体62表面に対して略垂直に立設状態で被着されている。この繊維状体66は、図１０及び図１１に示すように、ガラス繊維や樹脂繊維等の繊維70の表面に光触媒64をコーティングして構成されているものである。 Therefore, the present applicant has previously proposed a photocatalyst carrier in which a large number of fibrous bodies whose surfaces are coated with a photocatalyst are deposited on the surface of the substrate in a standing state. (Unexamined-Japanese-Patent No. 2003-205244).
As shown in FIG. 9, this photocatalyst carrier 60 is coated with a photocatalyst 64 made of anatase-type titanium oxide (TiO 2 ) on the surface of a flat substrate 62 made of an appropriate material such as glass, resin, metal or the like. A large number of the elongated fibrous bodies 66 are attached in a standing state substantially perpendicularly to the surface of the base body 62 via an adhesive 68. As shown in FIGS. 10 and 11, the fibrous body 66 is formed by coating a photocatalyst 64 on the surface of a fiber 70 such as a glass fiber or a resin fiber.

上記光触媒担持体60における繊維状体66表面の光触媒64に、図示しない紫外線ランプ等からの紫外線が照射されると、光触媒64が活性化して該光触媒64表面に接触した空気や水の浄化を行うことができるのである。
特開２００３−２０５２４４号 When the photocatalyst 64 on the surface of the fibrous body 66 in the photocatalyst support 60 is irradiated with ultraviolet rays from an unillustrated ultraviolet lamp or the like, the photocatalyst 64 is activated to purify the air or water that is in contact with the photocatalyst 64 surface. It can be done.
JP 2003-205244 A

上記光触媒担持体60は、光触媒64で被覆された多数の繊維状体66を、基体62表面に対して略垂直に立設状態で被着したことから、基体62の表面積が、被着された多数の繊維状体66の表面積分増大することとなり、その結果、基体62表面に配置される光触媒64の表面積を拡大できるものであった。
しかしながら、光触媒による空気や水の浄化能力を向上させるためには光触媒の表面積をできるだけ拡大することが望ましいことから、基体に担持させる光触媒の表面積を、より一層大きく確保できる光触媒担持体の出現が望まれていた。 The photocatalyst carrier 60 was coated with a large number of fibrous bodies 66 coated with the photocatalyst 64 in a standing state substantially perpendicular to the surface of the base 62, so that the surface area of the base 62 was deposited. As a result, the surface integral of the large number of fibrous bodies 66 is increased, and as a result, the surface area of the photocatalyst 64 disposed on the surface of the substrate 62 can be increased.
However, since it is desirable to increase the surface area of the photocatalyst as much as possible in order to improve the ability of the photocatalyst to purify air and water, it is hoped that a photocatalyst carrier that can secure a much larger surface area of the photocatalyst supported on the substrate will appear. It was rare.

本発明は、上記要請に応えるためになされたものであり、その目的とするところは、基体に担持させる光触媒の表面積を大きく確保することのできる光触媒担持体の実現にある。   The present invention has been made to meet the above-described demands, and an object of the present invention is to realize a photocatalyst carrier that can secure a large surface area of the photocatalyst carried on a substrate.

上記の目的を達成するため、本発明に係る光触媒担持体は、基体の表面に、透光性の多孔質吸着材を多数配置すると共に、上記多孔質吸着材の表面及び細孔内に光触媒を保持せしめて成ることを特徴とする。   In order to achieve the above object, the photocatalyst carrier according to the present invention has a large number of translucent porous adsorbents disposed on the surface of the substrate, and the photocatalyst is disposed on the surface and pores of the porous adsorbent. It is characterized by being held.

上記多孔質吸着材は、例えば、接着剤を介して基板の表面に固着される。
或いは、基体の表面に、上記多孔質吸着材を配置すると共に、これら多孔質吸着材を網状部材で被覆しても良い。この場合、多孔質吸着材を複数の層状に配置すると共に、反射材を基体表面に配置し、これら多孔質吸着材及び反射材を上記網状部材で被覆するようにしても良い。 The porous adsorbent is fixed to the surface of the substrate via an adhesive, for example.
Alternatively, the porous adsorbent may be disposed on the surface of the substrate and the porous adsorbent may be covered with a net-like member. In this case, the porous adsorbent may be arranged in a plurality of layers, and the reflective material may be arranged on the surface of the substrate, and the porous adsorbent and the reflective material may be covered with the mesh member.

上記多孔質吸着材としては、シリカゲル又は多孔質ガラスが該当する。   Silica gel or porous glass corresponds to the porous adsorbent.

本発明の光触媒担持体にあっては、基体の表面に、比表面積が極めて大きい多孔質吸着材を多数配置すると共に、これら多孔質吸着材の表面及び細孔内に光触媒を保持せしめたことから、基体に担持する光触媒の表面積を大きく確保することができる。   In the photocatalyst carrier of the present invention, a large number of porous adsorbents having a very large specific surface area are arranged on the surface of the substrate, and the photocatalyst is held on the surfaces and pores of these porous adsorbents. A large surface area of the photocatalyst carried on the substrate can be secured.

基体の表面に、多孔質吸着材を複数の層状に配置すると共に、これら多孔質吸着材を網状部材で被覆した場合には、基体に担持する光触媒の表面積をより一層大きく確保することができる。
この場合、多孔質吸着材と共に反射材を基体表面に配置することにより、光触媒を活性化させる光を様々な方向に反射させて光触媒への照射効率を向上させることができる。 When the porous adsorbent is arranged in a plurality of layers on the surface of the substrate and the porous adsorbent is coated with a net-like member, the surface area of the photocatalyst carried on the substrate can be further ensured.
In this case, by disposing the reflecting material together with the porous adsorbent on the substrate surface, the light for activating the photocatalyst can be reflected in various directions to improve the irradiation efficiency to the photocatalyst.

以下、図面に基づき、本発明に係る光触媒担持体の実施形態を説明する。
図１乃至図３は、本発明に係る第１の光触媒担持体10を示すものであり、該第１の光触媒担持体10は、ガラス、樹脂、金属等の適宜な材料より成る平板状の基体12の表面に、アナターゼ型の酸化チタン（ＴｉＯ２）等より成る光触媒（図示せず）を保持して成る透光性の多孔質吸着材14が、透光性の接着剤16を介して多数固着されている。
上記光触媒は、紫外線の照射を受けて活性化する光触媒だけでなく、可視光の照射を受けて活性化する可視光型光触媒を用いることもできる。
上記透光性の接着剤16は、例えば、アルカリシリケート結合物、エチルシリケート結合物、アルコキシラン結合物、有機官能基を部分的に導入したアルコキシラン結合物及び有機ポリマーを反応させたアルコキシラン結合物等の無機結合材やハイブリッド系無機結合材を用いることができる。 Hereinafter, an embodiment of a photocatalyst carrier according to the present invention will be described with reference to the drawings.
FIGS. 1 to 3 show a first photocatalyst carrier 10 according to the present invention, and the first photocatalyst carrier 10 is a flat substrate made of a suitable material such as glass, resin, or metal. A large number of light-transmitting porous adsorbents 14 holding a photocatalyst (not shown) made of anatase-type titanium oxide (TiO 2 ) or the like on the surface of 12 are interposed through a light-transmitting adhesive 16. It is fixed.
As the photocatalyst, not only a photocatalyst activated by irradiation with ultraviolet rays but also a visible light photocatalyst activated by irradiation with visible light can be used.
The translucent adhesive 16 is, for example, an alkali silane bond, an ethyl silicate bond, an alkoxy lane bond, an alkoxy lane bond in which an organic functional group is partially introduced, and an alkoxy lane bond obtained by reacting an organic polymer. An inorganic binder such as a product or a hybrid inorganic binder can be used.

上記透光性の多孔質吸着材14は、径が１０ｎｍ〜５０ｎｍ程度の細孔を多数有する直径０．１ｍｍ〜５ｍｍ程度のビーズ状のシリカゲルで構成されており、細孔の比表面積が５０ｍ２／ｇ〜３００ｍ２／ｇ程度と極めて大きいものである。光触媒は、上記多孔質吸着材14の表面のみならず、細孔内にも吸着保持されている。
上記多孔質吸着材14の表面及び細孔内に光触媒を保持させるには、例えば、粒径が多孔質吸着材14の細孔径より小さい光触媒微粒子の分散液中に、多孔質吸着材14を浸漬した後、乾燥・焼成させることにより行うことができる。 The translucent porous adsorbent 14 is composed of bead-shaped silica gel having a diameter of about 0.1 mm to 5 mm having a large number of pores having a diameter of about 10 nm to 50 nm, and the specific surface area of the pores is 50 m 2. / G to about 300 m 2 / g. The photocatalyst is adsorbed and held not only on the surface of the porous adsorbent 14 but also in the pores.
In order to retain the photocatalyst on the surface and pores of the porous adsorbent 14, for example, the porous adsorbent 14 is immersed in a dispersion of photocatalyst fine particles whose particle diameter is smaller than the pore diameter of the porous adsorbent 14. Then, it can be performed by drying and firing.

上記多孔質吸着材14に保持された光触媒に、光触媒活性化作用を有する波長の光（紫外線や可視光）が照射されると、光触媒が活性化して該光触媒に接触した空気や水の浄化を行うことができるのである。
而して、上記第１の光触媒担持体10にあっては、基体12の表面に、比表面積が極めて大きい多孔質吸着材14を多数配置すると共に、これら多孔質吸着材14の表面及び細孔内に光触媒を保持せしめたことから、基体12に担持する光触媒の表面積を大きく確保することができる。
上記の通り、多孔質吸着材14は透光性を有していることから、細孔内に保持した光触媒にも光を十分に照射することが可能である。また、多数の細孔を有する多孔質吸着材14は、通気性、通水性に優れていることから、光触媒と、空気や水との接触効率が良好である。 When the photocatalyst held on the porous adsorbent 14 is irradiated with light having a photocatalytic activation wavelength (ultraviolet light or visible light), the photocatalyst is activated to purify the air or water that contacts the photocatalyst. It can be done.
Thus, in the first photocatalyst carrier 10, a large number of porous adsorbents 14 having a very large specific surface area are arranged on the surface of the substrate 12, and the surfaces and pores of these porous adsorbents 14 are arranged. Since the photocatalyst is held inside, a large surface area of the photocatalyst carried on the substrate 12 can be secured.
As described above, since the porous adsorbent 14 has translucency, the photocatalyst held in the pores can be sufficiently irradiated with light. Further, since the porous adsorbent 14 having a large number of pores is excellent in air permeability and water permeability, the contact efficiency between the photocatalyst and air or water is good.

図４及び図５は、本発明に係る第２の光触媒担持体18を示すものであり、該第２の光触媒担持体18は、基体12の表面に、多数の上記多孔質吸着材14を複数の層状に配置すると共に、これら多孔質吸着材14を、金属や樹脂等より成り、多数の連通孔19を備えた網状部材20で被覆して構成したものである。
この第２の光触媒担持体18にあっても、基体12の表面に、比表面積が極めて大きい多孔質吸着材14を多数配置すると共に、これら多孔質吸着材14の表面及び細孔内に光触媒を保持せしめたことから、基体12に担持する光触媒の表面積を大きく確保することができる。しかも、多孔質吸着材14が複数の層状に配置されているので、多孔質吸着材14が単層で配置されている上記第１の光触媒担持体10よりも、基体12に担持する光触媒の表面積をより一層大きく確保することができる。 4 and 5 show a second photocatalyst carrier 18 according to the present invention. The second photocatalyst carrier 18 has a plurality of porous adsorbents 14 on the surface of the substrate 12. These porous adsorbents 14 are made of metal, resin, or the like and are covered with a mesh member 20 having a large number of communication holes 19.
Even in the second photocatalyst carrier 18, a large number of porous adsorbents 14 having a very large specific surface area are arranged on the surface of the substrate 12, and photocatalysts are placed on the surfaces and pores of these porous adsorbents 14. Since it is held, a large surface area of the photocatalyst carried on the substrate 12 can be secured. In addition, since the porous adsorbent 14 is arranged in a plurality of layers, the surface area of the photocatalyst carried on the substrate 12 rather than the first photocatalyst carrier 10 in which the porous adsorbent 14 is arranged in a single layer. Can be secured even larger.

図６は、第２の光触媒担持体18の変形例を示すものであり、この第２の光触媒担持体18の変形例は、多孔質吸着材14と共に複数のビーズ状の反射材22を、基体12表面に層状に配置し、これら多孔質吸着材14及び反射材22を網状部材20で被覆して構成したものである。
上記反射材22は、アルミニウム等の光反射率の高い材料で構成することができる。また、表面が光反射率の高い白色と成された部材で反射材22を構成しても良い。
このように、多孔質吸着材14と共に反射材22を配置することにより、光触媒を活性化させる光を様々な方向に反射させて光触媒への照射効率を向上させることができる。 FIG. 6 shows a modified example of the second photocatalyst carrier 18, and this modified example of the second photocatalyst carrier 18 includes a porous adsorbent 14 and a plurality of bead-like reflectors 22. 12 is arranged in a layered manner on the surface, and the porous adsorbent 14 and the reflector 22 are covered with a mesh member 20.
The reflector 22 can be made of a material having a high light reflectance such as aluminum. Further, the reflecting material 22 may be constituted by a member whose surface is white with high light reflectance.
Thus, by disposing the reflective material 22 together with the porous adsorbent material 14, the light for activating the photocatalyst can be reflected in various directions to improve the irradiation efficiency to the photocatalyst.

図７及び図８は、本発明に係る第３の光触媒担持体24を示すものである。この第３の光触媒担持体24は、基体26が略円筒状に形成されており、該基体26の内表面に、光触媒を保持して成る上記多孔質吸着材14が、透光性の接着剤16を介して多数固着されている。図７及び図８において、28は基体26内部に挿通された紫外線ランプ等、光触媒を活性化させる波長の光を放射する光源である。   7 and 8 show a third photocatalyst carrier 24 according to the present invention. In the third photocatalyst carrier 24, a base 26 is formed in a substantially cylindrical shape, and the porous adsorbent 14 holding the photocatalyst on the inner surface of the base 26 is provided with a translucent adhesive. Many are fixed through 16. 7 and 8, reference numeral 28 denotes a light source that emits light having a wavelength that activates the photocatalyst, such as an ultraviolet lamp inserted into the base 26.

上記第３の光触媒担持体24にあっては、光源28から光の照射を受けると、光触媒が活性化して該光触媒に接触した空気や水の浄化を行うことができるのである。
この第３の光触媒担持体24にあっても、基体26の内表面に、比表面積が極めて大きい多孔質吸着材14を多数配置すると共に、これら多孔質吸着材14の表面及び細孔内に光触媒を保持せしめたことから、基体26に担持する光触媒の表面積を大きく確保することができる。
また、この第３の光触媒担持体24にあっては、基体26を略円筒状に形成すると共に、基体26内表面に光触媒を保持して成る多孔質吸着材14を固着しているので、当該基体26内部に光源28を挿通配置するができ、該光源28から放射される全ての光を効率良く光触媒に照射して活性化することができる。
尚、図７及び図８においては、基体26の内表面に多孔質吸着材14を単層で配置した場合を例示したが、上記第２の光触媒担持体18の場合と同様に、多孔質吸着材14を複数の層状に配置しても良い。また、基体26の内部空間の略全体を、上記多孔質吸着材14で充填するようにしても良い。これらの場合には、光触媒への光の照射効率を向上させるため、多孔質吸着材14と共に反射材22が配置される。 In the third photocatalyst carrier 24, when irradiated with light from the light source 28, the photocatalyst is activated to purify the air and water in contact with the photocatalyst.
Even in the third photocatalyst carrier 24, a large number of porous adsorbents 14 having an extremely large specific surface area are arranged on the inner surface of the substrate 26, and the photocatalyst is formed on the surface and pores of the porous adsorbents 14. Therefore, a large surface area of the photocatalyst carried on the base 26 can be secured.
In the third photocatalyst carrier 24, the base 26 is formed in a substantially cylindrical shape, and the porous adsorbent 14 holding the photocatalyst is fixed to the inner surface of the base 26. A light source 28 can be inserted and disposed inside the substrate 26, and all the light emitted from the light source 28 can be efficiently irradiated by irradiating the photocatalyst.
7 and 8 exemplify the case where the porous adsorbent 14 is arranged in a single layer on the inner surface of the substrate 26. However, as in the case of the second photocatalyst carrier 18, the porous adsorbent 14 is disposed. The material 14 may be arranged in a plurality of layers. Further, substantially the entire internal space of the base 26 may be filled with the porous adsorbent 14. In these cases, the reflective material 22 is disposed together with the porous adsorbent 14 in order to improve the light irradiation efficiency to the photocatalyst.

尚、上記網状部材20を透光性樹脂等の透光性材料で構成し、光が網状部材20によって遮られないようにしても良い。
また、光触媒の表面積を拡大させるため、上記網状部材20に光触媒を担持させるようにしても良い。 The mesh member 20 may be made of a translucent material such as a translucent resin so that light is not blocked by the mesh member 20.
In addition, the photocatalyst may be supported on the mesh member 20 in order to increase the surface area of the photocatalyst.

上記光触媒としては、上記の酸化チタン以外に、ＺｎＯ、ＳｒＴｉＯ３、ＢａＴｉＯ３、Ｆｅ２Ｏ３等、光触媒作用を有する他の金属酸化物を用いることができるが、アナターゼ型の酸化チタンが、光触媒活性に優れており最も好適に使用できる。 As the photocatalyst, other metal oxides having photocatalytic action such as ZnO, SrTiO 3 , BaTiO 3 , Fe 2 O 3 and the like can be used in addition to the above titanium oxide, but anatase type titanium oxide is a photocatalyst. It is excellent in activity and can be used most preferably.

上記においては、透光性の多孔質吸着材14をシリカゲルで構成した場合を例に挙げて説明したが、本発明はこれに限定されるものではなく、バイコールガラス等のｎｍ単位の多数の細孔を有する多孔質ガラスで上記多孔質吸着材14を構成しても良い。   In the above description, the case where the translucent porous adsorbent 14 is made of silica gel has been described as an example. However, the present invention is not limited to this, and a large number of fine units of nm such as Vycor glass are used. The porous adsorbent 14 may be composed of porous glass having pores.

尚、本発明の上記光触媒担持体10，18，24を、空気等の気体の浄化用に使用する場合には、上記多孔質吸着材14の表面をシリコン樹脂や、テトラフルオロエチレンの重合体（ポリテトラフルオロエチレン、ＰＴＦＥ）であるテフロン（登録商標）等の撥水性のある気体透過性樹脂で被覆しても良い。
このように、多孔質吸着材14の表面を撥水性のある気体透過性樹脂で被覆すると、多孔質吸着材14が空気中の水分を細孔内に吸着することが抑制され、その結果、浄化対象の気体を効率よく細孔内に吸着して、細孔内の光触媒と接触させることができる。 When the photocatalyst carrier 10, 18, 24 of the present invention is used for purifying a gas such as air, the surface of the porous adsorbent 14 is made of a silicone resin or a polymer of tetrafluoroethylene ( You may coat | cover with water-repellent gas-permeable resin, such as Teflon (trademark) which is polytetrafluoroethylene and PTFE.
As described above, when the surface of the porous adsorbent 14 is coated with a water-repellent gas-permeable resin, the porous adsorbent 14 is suppressed from adsorbing moisture in the air into the pores. The target gas can be efficiently adsorbed in the pores and brought into contact with the photocatalyst in the pores.

本発明に係る第１の光触媒担持体を模式的に示す正面図である。It is a front view which shows typically the 1st photocatalyst carrier based on this invention. 本発明に係る第１の光触媒担持体を模式的に示す部分拡大図である。It is the elements on larger scale which show typically the 1st photocatalyst carrier concerning the present invention. 本発明に係る第１の光触媒担持体を模式的に示す平面図である。It is a top view which shows typically the 1st photocatalyst carrier based on this invention. 本発明に係る第２の光触媒担持体を模式的に示す正面図である。It is a front view which shows typically the 2nd photocatalyst carrier based on this invention. 本発明に係る第２の光触媒担持体を模式的に示す平面図である。It is a top view which shows typically the 2nd photocatalyst carrier based on this invention. 第２の光触媒担持体の変形例を模式的に示す正面図である。It is a front view which shows typically the modification of a 2nd photocatalyst carrier. 本発明に係る第３の光触媒担持体を模式的に示す概略縦断面図である。It is a schematic longitudinal cross-sectional view which shows typically the 3rd photocatalyst carrier based on this invention. 本発明に係る第３の光触媒担持体を模式的に示す概略横断面図である。It is a schematic cross-sectional view which shows typically the 3rd photocatalyst carrier based on this invention. 従来の光触媒担持体を示す断面図である。It is sectional drawing which shows the conventional photocatalyst carrier. 従来の光触媒担持体における繊維状体の拡大縦断面図である。It is an expanded longitudinal cross-sectional view of the fibrous body in the conventional photocatalyst carrier. 従来の光触媒担持体における繊維状体の拡大横断面図である。It is an expansion cross-sectional view of the fibrous body in the conventional photocatalyst carrier.

符号の説明Explanation of symbols

10 第１の光触媒担持体
12 基体
14 多孔質吸着材
16 透光性の接着剤
18 第２の光触媒担持体
20 網状部材
22 反射材
24 第３の光触媒担持体
26 基体
28 光源
10 First photocatalyst carrier
12 substrate
14 Porous adsorbent
16 Translucent adhesive
18 Second photocatalyst carrier
20 Mesh member
22 Reflector
24 Third photocatalyst carrier
26 Base
28 Light source

Claims (5)

基体の表面に、透光性の多孔質吸着材を多数配置すると共に、上記多孔質吸着材の表面及び細孔内に光触媒を保持せしめて成ることを特徴とする光触媒担持体。   A photocatalyst carrier comprising a plurality of translucent porous adsorbents arranged on the surface of a substrate and a photocatalyst held on the surface and pores of the porous adsorbent. 基体の表面に、上記多孔質吸着材が接着剤を介して固着されていることを特徴とする請求項１に記載の光触媒担持体。   2. The photocatalyst carrier according to claim 1, wherein the porous adsorbent is fixed to the surface of the substrate via an adhesive. 基体の表面に、上記多孔質吸着材を配置すると共に、これら多孔質吸着材を網状部材で被覆したことを特徴とする請求項１に記載の光触媒担持体。   2. The photocatalyst carrier according to claim 1, wherein the porous adsorbent is disposed on a surface of a substrate, and the porous adsorbent is covered with a net-like member. 上記多孔質吸着材を複数の層状に配置すると共に、反射材を基体表面に配置し、これら多孔質吸着材及び反射材を上記網状部材で被覆したことを特徴とする請求項３に記載
の光触媒担持体。 4. The photocatalyst according to claim 3, wherein the porous adsorbent is disposed in a plurality of layers, a reflective material is disposed on the surface of the substrate, and the porous adsorbent and the reflective material are covered with the mesh member. Carrier. 上記多孔質吸着材が、シリカゲル又は多孔質ガラスであることを特徴とする請求項１乃至４の何れかに記載の光触媒担持体。
The photocatalyst carrier according to any one of claims 1 to 4, wherein the porous adsorbent is silica gel or porous glass.
JP2004045819A 2004-02-23 2004-02-23 Photocatalyst carrier Pending JP2005230757A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018143636A (en) * 2017-03-08 2018-09-20 国立大学法人九州大学 Reaction tube and air purification device
JP2019018159A (en) * 2017-07-19 2019-02-07 ミカサ商事株式会社 Photocatalyst-containing product and method for producing the same
CN111285429A (en) * 2020-02-29 2020-06-16 西南石油大学 Low-transmittance sewage photocatalytic treatment composite board and preparation method thereof

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Publication number Priority date Publication date Assignee Title
JPH09187721A (en) * 1995-10-31 1997-07-22 Tao:Kk Surface structure having photocatalyst function and formation thereof
JPH10156190A (en) * 1996-12-04 1998-06-16 Sekisui Chem Co Ltd Production of functional material having photocatalytic performance
JP2000262909A (en) * 1999-03-23 2000-09-26 Sintokogio Ltd Product having photocatalytic function
JP2001070415A (en) * 1999-09-01 2001-03-21 Denso Corp Photocatalyst filter
JP2002095725A (en) * 2000-09-26 2002-04-02 Toyoda Gosei Co Ltd Photocatalytic filter and air cleaner
JP2005230760A (en) * 2004-02-23 2005-09-02 Okaya Electric Ind Co Ltd Air cleaner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09187721A (en) * 1995-10-31 1997-07-22 Tao:Kk Surface structure having photocatalyst function and formation thereof
JPH10156190A (en) * 1996-12-04 1998-06-16 Sekisui Chem Co Ltd Production of functional material having photocatalytic performance
JP2000262909A (en) * 1999-03-23 2000-09-26 Sintokogio Ltd Product having photocatalytic function
JP2001070415A (en) * 1999-09-01 2001-03-21 Denso Corp Photocatalyst filter
JP2002095725A (en) * 2000-09-26 2002-04-02 Toyoda Gosei Co Ltd Photocatalytic filter and air cleaner
JP2005230760A (en) * 2004-02-23 2005-09-02 Okaya Electric Ind Co Ltd Air cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018143636A (en) * 2017-03-08 2018-09-20 国立大学法人九州大学 Reaction tube and air purification device
JP2019018159A (en) * 2017-07-19 2019-02-07 ミカサ商事株式会社 Photocatalyst-containing product and method for producing the same
CN111285429A (en) * 2020-02-29 2020-06-16 西南石油大学 Low-transmittance sewage photocatalytic treatment composite board and preparation method thereof

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