CN1940152A - Composite fibre containing light catalyst, its production and polluted fluid purification - Google Patents
Composite fibre containing light catalyst, its production and polluted fluid purification Download PDFInfo
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- CN1940152A CN1940152A CN 200510113340 CN200510113340A CN1940152A CN 1940152 A CN1940152 A CN 1940152A CN 200510113340 CN200510113340 CN 200510113340 CN 200510113340 A CN200510113340 A CN 200510113340A CN 1940152 A CN1940152 A CN 1940152A
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Abstract
It was a composite fiber with Photocatalyst, containing the first organic polymer as the first part and the mixture of the first, the second organic polymer and a Photocatalyst as the second part. The second part was paralleled or coated in the first part. The first and second organic polymer can be the same or different, which elected respectively from polyester, polycarbonate, polyamide, polyolefin, polyacrylate, polyvinyl alcohol, polyvinyl chloride, polyvinyl fluoride, Polystyrene and a combination of these. Another preparation of composite fiber with Photocatalyst and purification methods of contaminated fluid using it was contained in this invention. The invention was the composite fiber with Photocatalyst which can make anchor Photocatalyst stable, effectively increase the efficiency of photocatalytic reaction, prolong service life and be reused.
Description
[technical field]
The invention relates to a kind of composite fibre that contains photocatalyst (photocatalyst) and method for making thereof and uses thereof, be meant especially a kind of have can allow photocatalyst set stably, and effectively bring into play the effect of the reaction efficiency of photocatalyst, and utilize the prepared composite fibre that contains photocatalyst of composite spinning (bicomponent spinning) mode, and the contaminated fluids purification method of utilizing this composite fibre that contains photocatalyst.
[background technology]
In recent years, have functions such as sterilization, antifouling, air cleaning, deodorization because find photocatalyst, make its hot product that becomes present industry, the every effectiveness that is produced then is generically and collectively referred to as " photocatalyst effect ".
" photocatalyst reaction " is by ultraviolet light or irradiation of sunlight, make the electronics (electron) of photocatalyst surface absorb enough energy and jump to high energy rank track, and just form the electric hole (holes) of positively charged in the position of electron detachment, the hydroxy oxidation (just capturing its electronics) that can dissociate near hydrone and in the electricity hole makes it become active hydroxyl free radical (OH radical) greatly.And in a single day hydroxyl free radical meets organic substance, just electronics can be recaptured, and causes organic substance to decompose because of bond is destroyed, to reach the target of scrubbing and sterilization.
Photocatalyst now has been widely used in the surrounding environment of daily life, especially for purifying air and the device of water or other fluid.In the most of fluid purification that can see on the market, photocatalyst generally is to be coated on the inwall or filter of fluid purification with form of film, for example: United States Patent (USP) the 5th, 790,934 and 6,063, just disclose a kind of reactor that several are coated with the fan of photocatalyst that comprises for No. 343, and the TaiWan, China patent announcement also discloses a kind of ultraviolet light/titanium-dioxide photo oxidation unit (photo-oxidation device) for No. 402162, this device comprises one and has the rabbling mechanism that several are coated with the stirring vane of photocatalyst, or be coated on for example bead, carrier such as pottery and stainless shot (supporter), but, most photo-catalyst film can be along with the increase of service time, and occur coming off and can't fully absorb ultraviolet light and make problems such as reaction efficiency reduction, again, this obscission is even more serious at water purification installation, therefore, at present industry can't be stablized set at photocatalyst and how effectively bring into play problem such as photocatalyst reaction efficient, and utmost point desire is sought a solution.
In addition, for effectively bringing into play photocatalyst reaction efficient, in water purification installation, also once the someone attempts directly photocatalyst being added formation one slurries in the sewage, then utilize ultraviolet light to shine again, with the organic matter in the decomposition water, for example: United States Patent (USP) the 5th, 174,877 and 5, once disclosed a kind of washer of contaminated fluids 294, No. 315, this washer comprises one for the cell body that holds photocatalyst powder and contaminated fluids.But; after finishing the water purified treatment; because the particle diameter of general photocatalyst generally between tens of how rice between hundreds of how rice; and must photocatalyst be separated with water by filtration membrane, still, after long-time the use; the hole of filtration membrane can be filled up by photocatalyst and be easy to generate the phenomenon of obstruction; need this moment earlier water purification installation to be shut down to carry out film change again, and allow the cost of whole purification process increase, more allow purification efficiency significantly reduce.
Though industry once was applied to photocatalyst on the non-rigid carriers such as fiber or fabric at present, but the purposes of this series products is sterilization and self-cleaning (self-cleaning) ability in order to improve product itself mostly, and has not had the people that it is applied in any purification method or the device.
By above explanation as can be known, how to avoid the filtration membrane of purifier to block, and can allow photocatalyst set stably, and effectively bring into play the reaction efficiency of photocatalyst, for present industry, still have this demand to exist.
[summary of the invention]
Therefore, a purpose of the present invention be to provide a kind of and stablize the set photocatalyst, can effectively increase photocatalyst reaction efficient, long service life and the reusable composite fibre that contains photocatalyst.
Another object of the present invention is to provide a kind of composite spinning method that utilizes to prepare the method that this contains the composite fibre of photocatalyst.
Another purpose of the present invention is to provide a kind of contaminated fluids purification method of utilizing this composite fibre that contains photocatalyst.
So the composite fibre that the present invention contains photocatalyst is to comprise a first and to engage or coat the second portion of this first side by side with this first.One first organic polymer is contained in this first, and this second portion is to comprise that one contains the mixture of one second organic polymer and a photocatalyst, wherein, it is identical or inequality that this first organic polymer and second organic polymer can be, and be selected from the group that is made of following respectively: polyester (polyester), Merlon (polycarbonate), polyamide (polyamide), polyolefin (polyolefin), polyacrylate (polyacrylate), polyvinyl alcohol (polyvinyl alcohol), polyvinyl chloride (polyethylenechloride), polyvinyl fluoride (polyethylene fluoride), a polystyrene (polystyrene) and these a combination.
And the present invention is used to prepare the step that this method that contains the composite fibre of photocatalyst comprises be: with this first organic polymer as first and this mixture that contains this second organic polymer and this photocatalyst as second portion, and carry out the composite spinning step, make the composite fibre that this contains photocatalyst at last.
In addition, the step that the present invention utilizes the contaminated fluids purification method of this composite fibre that contains photocatalyst to comprise is: several composite fibres that contain photocatalyst are placed in the contaminated fluids, and bestow the light irradiation of visible light or ultraviolet light range wavelength, so as to purifying this contaminated fluids.
The composite fibre that the present invention contains photocatalyst is to be prepared by the composite spinning method, cause photocatalyst can stably anchor at fiber surface, and photocatalyst is not coated on device inwall or other carriers and can only allows the photocatalyst of surperficial institute set react like general purifier, the present invention just adds photocatalyst when fiber is made, relend by obtained fiber itself and have bigger surface area, therefore increase the set area of photocatalyst, so under the light irradiation, can effectively promote the reaction efficiency of photocatalyst.In addition, because photocatalyst is to be stabilized the ground set, be difficult for to produce obscission, therefore, it is reusable that the present invention contains the composite fibre of photocatalyst, increases the service life simultaneously.
Contaminated fluids purification method of the present invention then is that this composite fibre that contains photocatalyst directly is placed in this contaminated fluids, cause this contaminated fluids to have the composite fibre that contains photocatalyst of more photocatalyst to contact with surperficial set fully, and by the irradiation of the light of visible light or ultraviolet light range wavelength, to allow organic pollution and photocatalyst in this fluid produce reaction, and then bodies for purifying fluids efficiently, the size of adding fiber is bigger, and can not produce the problem that filtration membrane blocks.
[description of drawings]
The present invention is described in detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is a drawing in side sectional elevation, illustrates that the present invention contains a structure of the composite fibre of photocatalyst.
Fig. 2 is a drawing in side sectional elevation, illustrates that the present invention contains another structure of the composite fibre of photocatalyst.
Fig. 3 is a schematic diagram, illustrates that composite fibre that the present invention contains photocatalyst makes a form of bundle fiber.
Fig. 4 is a schematic diagram, illustrates that composite fibre that the present invention contains photocatalyst makes a form of puffy fiber.
Fig. 5 is a schematic diagram, illustrates that composite fibre that the present invention contains photocatalyst makes a form of block nonwoven fabric.
Fig. 6 is a schematic diagram, illustrates that composite fibre that the present invention contains photocatalyst makes a form of block nonwoven fabric.
Fig. 7 is a schematic diagram, illustrates that the composite fibre that the present invention contains photocatalyst makes a form of braid.
Fig. 8 is a schematic diagram, and the structure of Fliod fluid decontamination system of the embodiment 1 of the composite fibre that utilizes the present invention to contain photocatalyst is described.
Fig. 9 is a schematic diagram, and the structure of Fliod fluid decontamination system of the embodiment 2 of the composite fibre that utilizes the present invention to contain photocatalyst is described.
Figure 10 is a schematic cross section, and the photocatalyst unit 10-10 along the line of the Fliod fluid decontamination system of key diagram 9 carries out the structure of section.
[specific embodiment]
The composite fibre that the present invention contains the photocatalyst fiber comprises one and contains one first organic macromolecule first and and comprise that one contains the second portion of the mixture of second organic polymer and a photocatalyst, this second portion engages or coats this first side by side with this first, it is identical or inequality that this first organic polymer and this second organic polymer can be, and be selected from the group that is made of following respectively: polyester, Merlon, polyamide, polyolefin, polyacrylate, polyvinyl alcohol, polyvinyl chloride, polyvinyl fluoride, a polystyrene and these a combination.
What deserves to be mentioned is, in numerous organic polymers, when this first organic polymer and second organic polymer select to use the optical high molecular (optical polymer) of for example fluoride resin (fluoropolymer), polymethyl methacrylate (polymethylmethacrylate), Merlon and polystyrene etc., have more the conducting light ability and bring into play the effect of photocatalyst effectively.
Preferably, as shown in Figure 1, this second portion 12 is to engage side by side with this first 11, just this composite fibre 1 that contains photocatalyst is (side byside) type composite fibre side by side, and containing the cumulative volume of the composite fibre 1 of photocatalyst in this, the volume of this first 11 is to be 20% ~ 80%, and the volume of this second portion 12 is to be 20% ~ 80%, more preferably, the volume of this first 11 and second portion 12 is all 50%.
Preferably, as shown in Figure 2, in a specific example of the present invention, this second portion 12 is to coat this first 11, just this composite fibre 1 that contains photocatalyst is the composite fibre of core sheath (core-sheath) type, contain the cumulative volume of the composite fibre 1 of photocatalyst in this, the volume of this first 11 is to be 40% ~ 90%, and the volume of this second portion 12 is to be 10% ~ 60%, more preferably, contain the cumulative volume of the composite fibre 1 of photocatalyst in this, the volume of this first 11 is to be 70% ~ 90%, and the volume of this second portion 12 is to be 10% ~ 30%.
What deserves to be mentioned is that this contains the first 11 of composite fibre 1 of photocatalyst and the volume ratio of second portion 12 can be adjusted variation according to actual needs (for example manufacturing cost and purposes).
Preferably, these first's 11 contained this first organic molecule and this second portion 12 these contained second organic polymers are to be selected from the group that is made of following respectively: polyethylene (polyethylene), polypropylene (polypropylene), polyethylene terephthalate (polyethylene terephthalate), polymethyl methacrylate, Merlon, polystyrene and these a combination.And in a specific example of the present invention, this first organic polymer and this second organic polymer are all polyethylene terephthalate.In another concrete example of the present invention, this first organic polymer and this second organic polymer are all polymethyl methacrylate.
Contain in the second portion 12 of composite fibre 1 of photocatalyst in the present invention, the photocatalyst that it is contained and this second organic macromolecule content ratio can be adjusted according to need, preferably, total restatement with this second portion 12, the content of this photocatalyst is to be 0.2 ~ 15 percentage by weight, more preferably, with total restatement of this second portion 12, the content of this photocatalyst is to be 0.5 ~ 8 percentage by weight.
These second portion 12 contained photocatalysts can utilize any commercially available on the market product that generally has the photocatalyst effect, for example titanium dioxide (TiO
2), zinc oxide (ZnO), tin oxide (SnO), tungsten oxide (WO) or iron oxide (Fe
2O
3) or the like, and the particle diameter of this photocatalyst is also optionally selected.Preferably, the photocatalyst of this second portion 12 is for being the titanium dioxide of anatase (anatase) crystallization, and preferably, its particle diameter is between between the 10nm to 900nm.More preferably, its particle diameter is between between the 10nm to 500nm, and again more preferably, its particle diameter is between between the 10nm to 200nm, and more more preferably, its particle diameter is between between the 10nm to 100nm.
These cross-sectional diameter, length or mode of appearance etc. that contain the composite fibre 1 of photocatalyst can change and process according to subsequent use, preferably, this cross-sectional diameter that contains the composite fibre 1 of photocatalyst is between 5 μ m to 2mm, and more preferably, this cross-sectional diameter that contains the composite fibre 1 of photocatalyst is between 10 μ m to 100 μ m.
Preferably, this length that contains the composite fibre 1 of photocatalyst is to be 1 ~ 80mm.
Preferably, this composite fibre 1 that contains photocatalyst is further to be made into a fiber assembly (fiber assemblies).More preferably, this composite fibre 1 that contains photocatalyst is further to be made into one to be selected from the fiber assembly that constitutes group by following: bundle fiber (fibers bundle, puffy fiber (bulky fibers as shown in Figure 3),, (fabric as shown in Figure 4), weaves cotton cloth, nonwoven fabric (non-woven fabric) and braid (knitted strap) as shown in Figure 5),, wherein, bundle fiber and puffy fiber are made through boundling (bundling) and set (consolidation) step.Nonwoven fabric then include, but are not limited to one have predetermined thickness and block nonwoven fabric through cutting (cutting) or cut after again through the block nonwoven fabric of set step, for example have the block nonwoven fabric (as shown in Figure 6) of central set line.And shape that should the bulk nonwoven fabric can be: cube, cylinder, polyhedron (for example: five prisms, hexagonal cylinder) etc.And braid is to utilize machine braiding (knitting) and made through cutting, and its shape can be the braid (as shown in Figure 7) of hollow cylindrical etc.In a specific example of the present invention, this composite fibre 1 that contains photocatalyst is made into bundle fiber.And in another concrete example of the present invention, this composite fibre 1 that contains photocatalyst is made with the block nonwoven fabric of central set line.
In addition, the present invention is used to prepare the step that the method for this composite fibre that contains photocatalyst 1 comprises: with this first organic polymer as first 11 and this mixture that contains this second organic polymer and this photocatalyst as second portion 12, and carry out the composite spinning step, make this composite fibre that contains photocatalyst 1 at last.
This first organic polymer, this second organic polymer and this photocatalyst are also selected as mentioned above and are changed, so in this no longer repeat specification.
Preferably, this method that is used to prepare this composite fibre that contains photocatalyst 1 more comprises a cutting step, is with this composite fibre that contains photocatalyst that makes at last 1 cutting, to obtain the staple fibre that contains photocatalyst with 1 ~ 80mm length.
Optionally, this method that is used to prepare this composite fibre that contains photocatalyst 1 more comprises a procedure of processing, is that the composite fibre that contains photocatalyst 1 that makes is at last made a photocatalyst fiber assembly.
Preferably, the composite fibre that contains photocatalyst 1 that this makes at last is made into one and is selected from the fiber assembly that constitutes group by following: bundle fiber, puffy fiber, weave cotton cloth, nonwoven fabric and braid.
Bundle fiber is that to carry out boundling, set and cutting step by the composite fibre 1 that this is contained photocatalyst made, and the puffy fiber is that to carry out crimp processing (crimping), boundling, set and cutting step by the composite fibre 1 that this is contained photocatalyst made.
Nonwoven fabric is to carry out opener (opening) and comb and parallel cotton fibers prior to spinning (carding) to form fiber web, made through steps such as folded cotton (lapping), sets again by the composite fibre 1 that this is contained photocatalyst, and follow-up use for convenience, the made nonwoven fabric that contains photocatalyst can carry out cutting step, has difform block nonwoven fabric to make, its shape includes, but are not limited to cube, cylinder, polyhedron (for example: five prisms, hexagonal cylinder) etc.In addition, this bulk nonwoven fabric can carry out a set step again, causes overall structure more firm, for example is made as a block nonwoven fabric with central set line.
Braid be this composite fibre 1 that contains photocatalyst is woven and cutting step made, and can be according to the actual required difformity that is made as, for example: hollow cylindrical.
In addition, the step that contaminated fluids purification method of the present invention comprises is: this composite fibre that contains photocatalyst of plural number is placed in the contaminated fluids, and bestows the light irradiation of visible light or ultraviolet light range wavelength, so as to purifying this contaminated fluids.
The composite fibre that the present invention contains photocatalyst is applicable to the various fluids of purified treatment, and preferably, this contaminated fluids is waste gas or waste water.And in an application examples of the present invention, this contaminated fluids is a waste water.
According to contaminated fluids purification method of the present invention, the composite fibre that this can be contained photocatalyst is applied in various Fliod fluid decontamination systems, and the member of this Fliod fluid decontamination system can change and design according to need.Preferably, this fluid purification is by this contaminated fluids being imported a fluid cleaning system, to purify this contaminated fluids, wherein, this Fliod fluid decontamination system comprises that one is used for the reactive tank of ccontaining this contaminated fluids, one be arranged in this reactive tank and in order to light that visible light or ultraviolet light range wavelength are provided to electro-optical device, an and photocatalyst unit that is placed in this reactive tank, this photocatalyst unit is made of these composite fibre or its fiber assemblies that contain photocatalyst, and give under the light irradiation that electro-optical device provided at this, and with this contaminated fluids haptoreaction.
Preferably, this photocatalyst unit is made of these composite fibres that contain photocatalyst, and these composite fibres that contain photocatalyst have 1 ~ 80mm length respectively.
Optionally, this photocatalyst unit is made of several fiber assemblies, and this fiber assembly is to be selected from the group that is made of following: bundle fiber, puffy fiber, weave cotton cloth, nonwoven fabric and braid.Preferably, this photocatalyst unit is made of several block nonwoven fabric, and in the application examples of the present invention, this photocatalyst unit is made of the bundle fiber that several are set parallel to each other and its both sides utilize resin embedding to fix respectively.
Preferably, this Fliod fluid decontamination system comprises that more one is arranged in this reactive tank and is used in the filter that this photocatalyst unit is separated with fluid through purifying.
About front of the present invention describing and other technology contents, characteristics and effect, below in conjunction with accompanying drawing and implement that the present invention is described in detail.
＜embodiment 〉
[chemicals]
1. first organic polymer of embodiment 1 and second organic polymer (polyethylene terephthalate abbreviates " PET " in the following description as): by the manufacturing of the Far East, Taiwan chemical fibre company.
2. first organic polymer of embodiment 2 and second organic polymer (polymethyl methacrylate abbreviates " PMMA " in the following description as): by the manufacturing of Taiwan Qi Mei company.
3. photocatalyst (anatase crystal type titanium dioxide): by the manufacturing of German Degussa company, average grain diameter is 21nm.
[embodiment 1] contains the making of the composite fibre (core-sheath-type) of photocatalyst
Volume ratio according to first and second portion is 70: 30, and with PET as first and contain PET and the mixture of titanium dioxide (with the total weight of this mixture, the part by weight of this PET and titanium dioxide is 99: 1) as second portion, carry out the composite spinning step again, to make the composite fibre that contains photocatalyst of cross-sectional diameter with 0.2mm, and then with this composite fibre cutting that contains photocatalyst, acquisition at last has the staple fibre that contains photocatalyst of the length of 5mm.
[methyl blue color fading test]
The concentration that will be placed on 20mL by this embodiment 1 prepared staple fibre that contains photocatalyst is methyl blue solution (the methylene blue of 10ppm, by the manufacturing of Japanese Katayama chemical company) in, follow irradiating ultraviolet light, to observe the change color of methyl blue solution.
(result):
Find that after 18 hours reaction the color of methyl blue solution changes colourless transparent solution into by blueness originally, obviously this embodiment 1 prepared staple fibre that contains photocatalyst has the photocatalyst effect really.
[embodiment 2] contain the making of the light conductivity bundle fiber of photocatalyst
Volume ratio according to first and second portion is 80: 20, and with PMMA as first and contain PMMA and the mixture of titanium dioxide (with the total weight of this mixture, the part by weight of this PMMA and titanium dioxide is 99: 1) as second portion, carry out the composite spinning step again, to make the composite fibre that contains photocatalyst of cross-sectional diameter with 0.2mm, and then make this composite fibre that contains photocatalyst carry out boundling and cutting step, obtain the light conductivity bundle fiber that contains photocatalyst at last with 10cm length.
[methyl blue color fading test]
Be placed on 20mL with 50 by these embodiment 2 prepared light conductivity bundle fibers that contain photocatalyst, concentration is in the methyl blue solution of 10ppm, then imports ultraviolet light by an end of these bundle fibers respectively, to observe the change color of methyl blue solution.
(result):
Find that after 20 hours reaction the color of methyl blue solution changes colourless transparent solution into by blueness originally, obviously these embodiment 2 prepared light conductivity bundle fibers that contain photocatalyst have the photocatalyst effect really.
[application examples 1] utilizes the water purification system of the staple fibre that contains photocatalyst of embodiment 1
As shown in Figure 8, the water purification system 2 of this application examples 1 comprises that a reactive tank 21, that is used in ccontaining sewage gives electro-optical device 22, a photocatalyst unit 23, an agitating device 24, and a filter 25.
This reactive tank 21 have a water inlet 211 and one with the delivery port 212 of these water inlet 211 opposite settings.Should be arranged in this reactive tank 21 to electro-optical device 22, and have two opposite settings and in order to the ultraviolet tube 221 of light that the ultraviolet light range wavelength is provided.This photocatalyst unit 23 is to be placed in this reactive tank 21 and the position is given between two ultraviolet tubes 221 of electro-optical device 22 at this, and is made of the embodiment 1 prepared staple fibre 231 that contains photocatalyst.
This agitating device 24 be arranged in this reactive tank 21 and the position at water inlet 211 places near this reactive tank 21, so that this photocatalyst unit 23 can evenly be mixed with sewage, the while haptoreaction.This filter 25 is arranged in this reactive tank 21 and with the delivery port 212 of this reactive tank 21 and is connected, so that this photocatalyst unit 23 is separated with sewage through purification.
The purification method of this sewage is: this sewage is imported in this reactive tank 21 by this water inlet 211, then contact with these staple fibres 231 that contain photocatalyst of this photocatalyst unit 23 by this agitating device 24, and under the light irradiation of this ultraviolet light range wavelength that is provided to two ultraviolet tubes 221 of electro-optical device 22, react, purifying waste water of obtaining at last will separate with these staple fibres 231 that contain photocatalyst through this filter 25, and leave by the delivery port 212 of this reactive tank 21, to collect.
[application examples 2] utilizes the water purification system of the light conductivity bundle fiber that contains photocatalyst
Shown in Fig. 9 and 10, the water purification system 3 of this application examples 2 comprises that a reactive tank 31, that is used in ccontaining sewage gives electro-optical device 32, a photocatalyst unit 33 and an agitating device 34.
This reactive tank 31 have a water inlet 311 and one with the delivery port 312 of these water inlet 311 opposite settings.Should be arranged in this reactive tank 31 to electro-optical device 32, and have two opposite settings and in order to the ultraviolet tube 321 of light that the ultraviolet light range wavelength is provided.As shown in figure 10, this photocatalyst unit 33 is to be provided with by several embodiment 2 prepared light conductivity bundle fibers 331 that contain photocatalyst are arranged in parallel and to utilize resin 332 to constitute in that the embedding of the both sides of these bundle fibers 331 is fixing.This photocatalyst unit 33 is to have two light guiding surfaces 333 at its two opposite sides, and light that two ultraviolet tubes 321 that should give electro-optical device 32 be provided can pass through one of them of this two light guiding surface 333 of this photocatalyst unit 33 respectively, to enter the light conductivity bundle fiber 331 that this contains photocatalyst.
This agitating device 34 be arranged in this reactive tank 31 and the position at water inlet 311 places near this reactive tank 21, so that this photocatalyst unit 33 can evenly be mixed with sewage, the while haptoreaction.
The purification method of this sewage is: sewage is imported in this reactive tank 31 by this water inlet 311, contact with this photocatalyst unit 33 through this agitating device 34, then make these two ultraviolet tubes 321 of giving electro-optical device 32 that the light of ultraviolet light range wavelength is provided, and enter these bundle fibers 331 through two light guiding surfaces 333 of this photocatalyst unit 33 respectively, produce reaction with photocatalyst and this sewage that causes these bundle fiber 331 surfaces.The delivery port 312 by this reactive tank 31 is left in purifying waste water of obtaining at last, to collect.
Comprehensive above explanation, the present invention contains the composite fibre of photocatalyst by composite spinning method, allows photocatalyst can stably anchor at the second portion of fiber, and effectively increases the reaction table area by the mode of making fiber, thereby promote the reaction efficiency of photocatalyst.In addition, the composite fibre that the present invention contains photocatalyst can further cut or procedure of processing, makes the staple fibre or the fiber assembly of various forms again, and can be used in the various contaminated fluids cleaning systems again, to finish the purification of fluid efficiently, reach purpose of the present invention really.
Claims (35)
1. a composite fibre that contains photocatalyst comprises a first, and one engage or coat the second portion of this first side by side with this first, it is characterized in that:
One first organic polymer is contained in this first, and this second portion, then be to comprise that one contains the mixture of one second organic polymer and a photocatalyst, wherein, it is identical or inequality that this first organic polymer and second organic polymer can be, and be selected from the group that is made of following respectively: polyester, Merlon, polyamide, polyolefin, polyacrylate, polyvinyl alcohol, polyvinyl chloride, polyvinyl fluoride, polystyrene and these a combination.
2. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that:
This second portion is to coat this first.
3. as containing the composite fibre of photocatalyst as described in the claim 2, it is characterized in that:
Contain the cumulative volume of the composite fibre of photocatalyst in this, the volume of this first is 40% ~ 90%, and the volume of this second portion is 10% ~ 60%.
4. as containing the composite fibre of photocatalyst as described in the claim 3, it is characterized in that:
Contain the cumulative volume of the composite fibre of photocatalyst in this, the volume of this first is 70% ~ 90%, and the volume of this second portion is 10% ~ 30%.
5. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that:
This first organic polymer and this second organic polymer are to be selected from the group that is made of following respectively: polyethylene, polypropylene, polyethylene terephthalate, polymethyl methacrylate, Merlon, polystyrene and these a combination.
6. as containing the composite fibre of photocatalyst as described in the claim 5, it is characterized in that:
This first organic polymer and this second organic polymer are all polyethylene terephthalate.
7. as containing the composite fibre of photocatalyst as described in the claim 5, it is characterized in that:
This first organic polymer and this second organic polymer are all polymethyl methacrylate.
8. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that:
With the total weight of the mixture of this second portion, the content of this photocatalyst is 0.2 ~ 15 percentage by weight.
9. as containing the composite fibre of photocatalyst as described in the claim 8, it is characterized in that: with the total weight of the mixture of this second portion, the content of this photocatalyst is 0.5 ~ 8 percentage by weight.
10. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that: this photocatalyst is the anatase crystallization, and its particle diameter is between between the 10nm to 900nm.
11. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that: the particle diameter of this photocatalyst is between between the 10nm to 500nm.
12. as containing the composite fibre of photocatalyst as described in the claim 11, it is characterized in that: the particle diameter of this photocatalyst is between between the 10nm to 200nm.
13. as containing the composite fibre of photocatalyst as described in the claim 12, it is characterized in that: the particle diameter of this photocatalyst is between between the 10nm to 100nm.
14. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that: its cross-sectional diameter is between between the 5m to 2mm.
15. as containing the composite fibre of photocatalyst as described in the claim 14, it is characterized in that: its cross-sectional diameter is between between the 10m to 100m.
16. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that: it has the length of 1 ~ 80mm.
17. contain the composite fibre of photocatalyst according to claim 1, it is characterized in that: it further is made into a fiber assembly.
18. as containing the composite fibre of photocatalyst as described in the claim 17, it is characterized in that: it is further to be made into one to be selected from the fiber assembly that constitutes group by following: bundle fiber, puffy fiber, weave cotton cloth, nonwoven fabric and braid.
19. as containing the composite fibre of photocatalyst as described in the claim 18, it is characterized in that: it is further to be made into a block nonwoven fabric.
20. as containing the composite fibre of photocatalyst as described in the claim 18, it is characterized in that: it is further to be made into a braid that is hollow cylindrical.
21. method that is used to prepare the composite fibre that contains photocatalyst according to claim 1, it is characterized in that, it comprises following step: with this first organic polymer as first and the mixture that contains this second organic polymer and this photocatalyst as second portion, and carry out the composite spinning step, make the composite fibre that this contains photocatalyst at last.
22. as being used to prepare the method for the composite fibre that contains photocatalyst as described in the claim 21, it is characterized in that: more comprise a cutting step, be composite fibre cutting that contains photocatalyst that this is made at last, to obtain the staple fibre that contains photocatalyst with 1 ~ 80mm length.
23. as being used to prepare the method for the composite fibre that contains photocatalyst as described in the claim 21, it is characterized in that: more comprising a procedure of processing, is that this composite fibre that contains photocatalyst that makes is at last made a fiber assembly.
24. as being used to prepare the method for the composite fibre that contains photocatalyst as described in the claim 23, it is characterized in that: this fiber assembly is to be selected from the group that is made of following: bundle fiber, puffy fiber, weave cotton cloth, nonwoven fabric and braid.
25. as being used to prepare the method for the composite fibre that contains photocatalyst as described in the claim 24, it is characterized in that: this fiber assembly is to be a block nonwoven fabric.
26. as being used to prepare the method for the composite fibre that contains photocatalyst as described in the claim 24, it is characterized in that: this fiber assembly is the braid that is hollow cylindrical for.
27. contaminated fluids purification method, it is characterized in that, the step that comprises is: several composite fibres that contain photocatalyst according to claim 1 are placed in this contaminated fluids, and bestow the light irradiation of visible light or ultraviolet light range wavelength, so as to purifying this contaminated fluids.
28. as contaminated fluids purification method as described in the claim 27, it is characterized in that: this contaminated fluids is waste gas or waste water.
29. as contaminated fluids purification method as described in the claim 28, it is characterized in that: this contaminated fluids is a waste water.
30. as contaminated fluids purification method as described in the claim 27, it is characterized in that: be by this contaminated fluids being imported a fluid cleaning system, purify this contaminated fluids, wherein, this Fliod fluid decontamination system comprises that one is used in the reactive tank of ccontaining this contaminated fluids, one be arranged in this reactive tank and in order to light that visible light or ultraviolet light range wavelength are provided to electro-optical device, an and photocatalyst unit that is placed in this reactive tank, this photocatalyst unit is made of these composite fibre or its fiber assemblies that contain photocatalyst, and give under the light irradiation that electro-optical device provided at this, with this contaminated fluids haptoreaction.
31. as contaminated fluids purification method as described in the claim 30, it is characterized in that: this photocatalyst unit is made of these composite fibres that contain photocatalyst, and these composite fibres that contain photocatalyst are to have 1 ~ 80mm length respectively.
32. as contaminated fluids purification method as described in the claim 30, it is characterized in that: this photocatalyst unit is made of several fiber assemblies, and this fiber assembly is to be selected from the group that is made of following: bundle fiber, puffy fiber, weave cotton cloth, nonwoven fabric and braid.
33. as contaminated fluids purification method as described in the claim 32, it is characterized in that: this photocatalyst unit is to be set parallel to each other and its both sides utilize the fixing bundle fiber of a resin embedding to be constituted respectively by several.
34. as contaminated fluids purification method as described in the claim 32, it is characterized in that: this photocatalyst unit is made of several block nonwoven fabric.
35. as contaminated fluids purification method as described in the claim 30, it is characterized in that: this Fliod fluid decontamination system comprises that more one is arranged in this reactive tank and is used in the filter that this photocatalyst unit is separated with fluid through purifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510113340 CN1940152A (en) | 2005-09-29 | 2005-09-29 | Composite fibre containing light catalyst, its production and polluted fluid purification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510113340 CN1940152A (en) | 2005-09-29 | 2005-09-29 | Composite fibre containing light catalyst, its production and polluted fluid purification |
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| CN1940152A true CN1940152A (en) | 2007-04-04 |
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| CN 200510113340 Pending CN1940152A (en) | 2005-09-29 | 2005-09-29 | Composite fibre containing light catalyst, its production and polluted fluid purification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019051A (en) * | 2015-08-03 | 2015-11-04 | 天津工业大学 | Preparation method of functionalized photocatalyst fibers |
| CN106319673A (en) * | 2016-08-19 | 2017-01-11 | 浙江理工大学 | Composite photocatalytic fibers and preparation method thereof |
| CN108947089A (en) * | 2018-08-07 | 2018-12-07 | 朱双亮 | For by the pollution amelioration method of the water of organic pollution |
-
2005
- 2005-09-29 CN CN 200510113340 patent/CN1940152A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019051A (en) * | 2015-08-03 | 2015-11-04 | 天津工业大学 | Preparation method of functionalized photocatalyst fibers |
| CN106319673A (en) * | 2016-08-19 | 2017-01-11 | 浙江理工大学 | Composite photocatalytic fibers and preparation method thereof |
| CN106319673B (en) * | 2016-08-19 | 2019-04-19 | 浙江理工大学 | A kind of composite photocatalyst fiber and preparation method thereof |
| CN108947089A (en) * | 2018-08-07 | 2018-12-07 | 朱双亮 | For by the pollution amelioration method of the water of organic pollution |
| CN108947089B (en) * | 2018-08-07 | 2021-06-01 | 朱双亮 | Pollution remediation method for water polluted by organic matters |
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