WO2005053363A1 - Elファイバー及び光触媒反応容器 - Google Patents
Elファイバー及び光触媒反応容器 Download PDFInfo
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- WO2005053363A1 WO2005053363A1 PCT/JP2004/017677 JP2004017677W WO2005053363A1 WO 2005053363 A1 WO2005053363 A1 WO 2005053363A1 JP 2004017677 W JP2004017677 W JP 2004017677W WO 2005053363 A1 WO2005053363 A1 WO 2005053363A1
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- 239000000835 fiber Substances 0.000 title claims abstract description 52
- 239000011941 photocatalyst Substances 0.000 title abstract description 31
- 238000006243 chemical reaction Methods 0.000 title abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 56
- 239000002245 particle Substances 0.000 claims abstract description 41
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 230000005684 electric field Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 26
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 20
- 230000001699 photocatalysis Effects 0.000 claims description 20
- 239000004065 semiconductor Substances 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 238000013032 photocatalytic reaction Methods 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 2
- 229910052785 arsenic Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 18
- 239000000843 powder Substances 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- 238000000354 decomposition reaction Methods 0.000 description 11
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- 239000002759 woven fabric Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 9
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 9
- 229910052753 mercury Inorganic materials 0.000 description 9
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 8
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- 239000000126 substance Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 241000700605 Viruses Species 0.000 description 5
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
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- 238000000576 coating method Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- 230000002070 germicidal effect Effects 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
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- 230000005476 size effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 241000238876 Acari Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- -1 M n Inorganic materials 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000032900 absorption of visible light Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
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- 150000002894 organic compounds Chemical class 0.000 description 1
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- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/61—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing fluorine, chlorine, bromine, iodine or unspecified halogen elements
- C09K11/611—Chalcogenides
- C09K11/612—Chalcogenides with zinc or cadmium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0883—Arsenides; Nitrides; Phosphides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/61—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing fluorine, chlorine, bromine, iodine or unspecified halogen elements
- C09K11/611—Chalcogenides
- C09K11/613—Chalcogenides with alkali or alkakine earth metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/64—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing aluminium
- C09K11/641—Chalcogenides
- C09K11/642—Chalcogenides with zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7704—Halogenides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7767—Chalcogenides
- C09K11/7769—Oxides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
Definitions
- the present invention relates to an EL fiber having a function of decomposing and sterilizing organic substances and bacteria, and a photocatalytic reaction vessel using the EL fiber.
- Photocatalytic materials that decompose and sterilize harmful substances, bacteria, and viruses have attracted attention.
- Representative photocatalytic is T io 2, because this generally is a material wavelength exerts a photocatalytic function by 4 0 0 nm UV light below, most catalytic effect in sunlight contains less ultraviolet rays Can not be demonstrated.
- Photocatalytic materials that work even with visible light having a wavelength exceeding 400 nm have been developed.
- This crystal system anatase T i 0 2 to N, S, M n, F e, C o, which was doped with Z n, C u like, which has a higher absorption of visible light f Izumi some, but most of the material, although the photocatalytic function in the visible light is to act, as compared to a combination of ultraviolet ray and anatase T io 2, the performance would beat low up to about l Z l 0 0. It is reported that only exceptionally doping with y-element does not show any significant performance degradation. (Refer to the 2003 Denki-Danigaku Fall Conference, Abstracts of Lectures, The Institute of Electrical Chemistry, p. 322)
- FIG. 1 shows the conceptual structure. 1 is an internal electrode, 2 is an internal insulating layer, 3 is a light emitting layer, 4 is an external insulator, 5 is an external electrode, and 6 is a protective layer.
- the external insulator of 4 may not be necessary.
- To apply AC voltage between both electrodes As a result, electrons with a high energy state called hot electrons move through the insulator layer through the insulator layer, and this emits light by exciting semiconductor particles in the light emitting layer or specific ions added to the semiconductor particles. Occurs. It is called an EL fiber because it emits light by electronoluminescence.
- the present invention has been found to improve the above-described EL fiber based on an original idea, solve the above-mentioned problems, and provide a function of decomposing and sterilizing organic substances and bacteria.
- the first aspect of the present invention is an EL fiber mainly having an ultraviolet light emitting function, and has an ultraviolet or visible light emitting function having a wavelength of 400 nm or less, wherein the cross-sectional structure of the fiber is located at the center in the radial direction.
- An EL fiber that consists of an internal electrode, an internal insulating layer, a light-emitting layer, an external electrode, and a protective layer formed on the outermost surface formed around the electrode, and emits light when an AC electric field is applied between the electrodes. This is composed of phosphor particles that constitute the light emitting layer emit ultraviolet light. Bacteria and viruses can be directly decomposed and sterilized by ultraviolet light.
- UV light is widely used as a germicidal lamp because it directly destroys the DNA of bacteria and viruses, so an EL fiber that emits ultraviolet light at 254 nm is an alternative to a direct germicidal lamp.
- a second aspect of the present invention is an EL fiber having an ultraviolet or visible light emitting function, and an EL fiber having an ultraviolet or visible light emitting function having a wavelength of 550 nm or less, wherein the fiber has a cross-sectional structure of: It is composed of an inner electrode located at the center in the radial direction, an inner insulating layer, a light emitting layer, an outer electrode, a protective layer formed around the inner electrode, and a particle layer or thin film having a photocatalytic function formed on the outermost surface,
- This is an EL fiber that emits light when the AC electric field is applied between the electrodes. That is, the EL fiber and the photocatalyst are integrated.
- This method irradiates a photocatalyst with visible light or ultraviolet light that emits light, and decomposes and sterilizes organic substances, bacteria, viruses, and the like by photocatalysis, and has a wider application than the first invention that emits only ultraviolet light.
- the present invention also provides a photocatalytic reaction vessel using the above EL fiber, and a photocatalytic reaction vessel having a structure in which EL fibers and photocatalytic fibers are alternately combined.
- FIG. 1 shows an EL fiber to which the present invention is applied.
- the internal electrode 1 may be made of ordinary metal, and a copper wire is used.
- the inner insulating layer 2 is for uniformly applying an AC electric field to the light emitting layer 3 and usually uses a dielectric resin alone such as cyanoresin, or a combination of the dielectric resin and B a Ti 0 3 A mixture of ceramic powders having a high dielectric constant such as is used. The thickness is several tens / im.
- a transparent conductive film such as an indium tin oxide (ITO) is used, or a NiCr alloy or the like is used. Are reduced to 0.1 ⁇ or less.
- Reference numeral 6 denotes a protective layer, which protects the light emitting layer 3 and the external electrode 5 from external environmental factors such as moisture, and must also transmit light emitted from the inside. If the light is visible light, ordinary transparent resin can be used, but if it is ultraviolet light, it is necessary to use a resin that is excellent in transmission of ultraviolet light. For example, there is an acrylic made by Mitsubishi Rayon. Further, the protective layer 6 itself may be a material having a photocatalytic function. For example, such coating can be considered a dense T i 0 2 by sputtering.
- the light emitting layer 3 is composed of phosphor particles dispersed in a dielectric resin in a normal EL fiber, and has a thickness of several tens / im.
- those emitting visible light having a wavelength exceeding 400 nm may be the same as ordinary EL fibers.
- the use of dielectric ceramics may cause degradation of the resin when used for a long period of time. Therefore, it is preferable to use dielectric ceramics instead of resin.
- the dielectric ceramics high B aT i 0 3 dielectric constant, S r T i 0 3, P b T i 0 3 , etc.
- Various materials are contemplated. In other words, it becomes a kind of shell structure in which phosphor particles are dispersed in dielectric ceramics. Most important is the phosphor.
- ZnS-based materials are well known as phosphor materials that emit light with high efficiency by electroluminescence in combination with a dielectric resin as in the present invention, and are also used as phosphors for general EL fibers. Used. (See P lastics, R ub D erand C omp osites P rogessingand Ap plications 1 998. V o 1.27, No. 3, 160-165)
- ZnS is doped with C1 or A1 as a second additive element. These additional elements form a donor level below the conduction band of ZnS.
- Cu or Ag is doped as the first additive element.
- acceptor level on the valence band of ZnS.
- energy such as an electron beam or ultraviolet light
- electrons in the valence band are once excited in the conduction band and then trapped in the donor level.
- holes newly generated in the valence band are captured by the acceptor level. Light emission occurs when electrons at the donor level recombine with holes at the acceptor level.
- the light emission wavelength is basically It is determined by the energy difference between the donor level and the acceptor level, and the larger the energy level, the shorter the wavelength of the light emission.
- E g the bandgap energy of ⁇ ⁇ S
- E D the bound energy of the donor.
- EA the binding energy of the acceptor
- e the elementary charge
- ⁇ n the vacuum dielectric Rate
- epsilon r the ratio electrostatic permittivity
- r is the distance of the donor and Akuseputa.
- the wavelength is
- these phosphors may be used in order to emit visible light of about 450 to 550 nm.
- Equation (1) shows that the emission wavelength is mainly determined by the band gap of the semiconductor material, the donor, and the acceptor level. That is, Meniwa that the emission wavelength to the short wavelength, a large (1) E g, (2 ) E small D, (3) While the child small E A required, these, E D does not change significantly depending on the element doped at about 0.1 eV. Also, E A, so is 0. 7 eV in Ag doping, in order to shorten the wavelength of the emission wavelength is substantially it is most important to increase the E g.
- Additive elements that form the acceptor level include Cu, Ag, Au, Li, Na, N, As, P, and Sb. Additive elements that form the donor level include C1, A1, I, F, and Br.
- E g bandgap energy
- the base material semiconductor Z n S (E g 3 . 7 e V) mixed crystal of semiconductor and Z n S of the large second component of Bandogiyappu than.
- Ba S and Be S are also candidates, but Mg S is most preferable.
- Another way to increase the bandgap is to reduce the size of the ZnS particles to nanosize.
- the quantum size effect appears due to the decrease in particle size, and the band gap increases.
- the particle diameter of the mixed crystal may be reduced.
- the particle size may be larger than using ZnS alone.
- the particle size at which the quantum size effect appears depends on E g and E A.
- the emission wavelength is below 400nm regardless of the particle size. If the amount of Mg S is large, the particle size tends to be unlimited. As the amount increases, the luminous efficiency may decrease. This is the same for other second component semiconductors. In that sense, the particle size should be less than 1 Onm.
- Y 2 0 3 G d
- S i -YON G d
- Z n F 2 such as G d
- Ya material doped with Gd ions GaN, ZnO, etc. are also candidates.
- the photocatalyst material if the wavelength use the following ultraviolet or visible light 400 nm is may anatase commonly used, rutile or in Burokkai preparative of T i 0 2,. In the visible light of greater than 400 nm, 1 ⁇ Ding 1_Rei 2, S, Mn, F e , C o, Zn, by doping at least one element of Cu, be used as the visible light-sensitive photocatalyst it can. Most preferred is S-doped, which has the highest photocatalytic activity.
- the above-mentioned invention is a compact light source that directly emits ultraviolet light or can exhibit a photocatalytic function, it can be used to process fluids in narrow areas that cannot be reached by an external light source or liquids with high turbidity. By installing it in the target object, an efficient disintegration / sterilization device can be made.
- FIG. 1 shows a conceptual diagram of an EL fiber to which the present invention can be applied.
- FIG. 2 is an explanatory diagram of the light emission mechanism of the ZnS-based phosphor.
- FIG. 3 is an explanatory diagram of the photocatalytic reaction test.
- FIG. 4 is an explanatory diagram of an example in which commercially available LEDs that emit ultraviolet light are arranged at intervals of 60 °.
- FIG. 5 is an explanatory diagram of an example in which mercury lamps are arranged at intervals of 60 °.
- ⁇ Fig. 6 shows a plan view 6A and a cross-sectional view 6B of the woven fabric produced with the EL fiber of Example 1.
- FIG. 7 is an explanatory diagram of the third embodiment.
- FIG. 8 is an explanatory diagram of a comparative example with the third embodiment.
- FIG. 9 is an explanatory diagram of another comparative example of the third embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
- a Cu wire having a diameter of 0.1 mm and a length of lm was used as a core electrode.
- ZnS Ag, C1 powder average particle size 3 to 15 nm
- T i 0 2 S-average particle size 0. 05 mu m
- Thiourea (CH 4 N 2 S) powder and Ti (OC 3 H 7 ) 4 were mixed in ethanol, and concentrated under reduced pressure until a white slurry was obtained. Then, it was calcined in the atmosphere at 2111 at 600 to obtain a powder. The doping amount of S was set to 2 at% with respect to oxygen.
- the resin was dispersed and dissolved in cyclohexanone at 30 V 0 1%. This solution was dispersed B a T i 0 3 powder those (30 V o 1%) was applied to the Cu wire, is controlled to a thickness of 30 Myupaiiota with rotating rollers, by 1 hr dried at 120 ° C An insulating layer was formed.
- Resin dispersed and dissolved in cyclohexanone to 30 V o 1% was prepared.
- a phosphor powder dispersed in Ar gas (30 vo 1%) was applied to this solution, applied to the surface of the insulating layer (a), and controlled to a thickness of 40 ⁇ with a rotating roller to obtain 1 ⁇ m.
- the layer was dried at 20 ° C. for 10 hours to form a light emitting layer.
- the photocatalyst particles to prepare a liquid dispersed in an alcohol, after immersing the EL Fuaiba was coated with T i 0 2 particles EL fiber surface by pulling.
- An AC electric field of 150 V, 400 Hz was applied between the core electrode of the EL fiber and the ITO electrode before coating the photocatalytic layer.
- the luminous brightness was measured with a luminance meter or an ultraviolet illuminometer, and the luminous efficiency was calculated from the input power.
- GaN LED 360 40 Anatase '100 ⁇ Low-pressure mercury lamp 254 80 Anatase' 100
- a Cu wire with a diameter of 0.1 mm and a length of lm was used as the core electrode.
- a predetermined amount of MgS powder (average particle diameter 0.5 ⁇ ) is mixed with commercially available ZnS: Ag, CI powder (average particle diameter 0.5 ⁇ m), and a planetary ball mill (ball diameter 40 ⁇ ). ) was obtained by pulverizing for various times in Ar at an acceleration of 144 G.
- An AC electric field of 200 V, 300 Hz was applied between the core electrode and the ITO electrode of the EL fiber before coating the photocatalytic layer.
- the luminous brightness was measured with a luminance meter or an ultraviolet illuminometer, and the luminous efficiency was calculated from the input power.
- the phosphor By making the phosphor a ZnS-MgS mixed crystal system, the emission wavelength became shorter and the decomposition rate improved. By be Rukoto the dielectric insulating layer or a light-emitting layer to B a T i 0 3 having a high dielectric constant, high luminous efficiency is obtained.
- the EL fiber of Example 1 was two-dimensional satin-woven at a pitch of 3 mm to produce a woven fabric having a size of 500 mm ⁇ 50 Omm.
- FIG. 6A is a plan view
- FIG. 6B is a cross-sectional view.
- a woven fabric made of photocatalytic fiber (made by Ube Industries) was cut into 500 mm x 50 Omm.
- GaN-based LED 360 40 Anatase 'None 18 Low-pressure mercury lamp 254 80 Anatase' None 11
- the decomposition time of this product was shorter than that of the external light source method.
- the difference was large when high turbidity liquids were treated. This is considered to be because the emitted light is absorbed by the pollution source in the external light source method. Even when the turbidity was low, the time required for the product of the present invention to decompose was short. This is probably because when the photocatalyst woven fabric is laminated, light does not uniformly reach the inner woven fabric using the external power supply method.
- the product of the present invention it is considered that all the photocatalyst fabrics work uniformly regardless of the number of layers because the light source is present near the photocatalyst fabric.
- the product of the present invention is a fiber that can emit ultraviolet light when an AC voltage is applied.
- a photocatalytic reaction can be efficiently caused without using an external ultraviolet light source such as an ultraviolet lamp or an ultraviolet LED.
- a photocatalytic reaction can be efficiently generated even in the case of a polluted fluid that absorbs ultraviolet rays that cannot be processed by an external light source.
- the photocatalytic reaction vessel using the product of the present invention can decompose organic substances and sterilize bacteria, N ⁇ x, SOx, CO gas, diesel particulates, pollen, dust Decomposition and removal of ticks, removal of organic compounds contained in sewage, germicidal light source for common bacteria and viruses, decomposition of harmful gases generated in chemical plants, decomposition of odorous components, ultrapure water production equipment It can be applied to various fields such as a germicidal light source.
- a ceramic filter a photocatalyst sheet, a photocatalyst woven fabric, or the like.
- a ceramic honeycomb filter pre-loaded with a photocatalyst
- both the function of separating the ceramic filter and the function of the photocatalyst can be provided.
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- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Catalysts (AREA)
- Electroluminescent Light Sources (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/580,204 US20070126341A1 (en) | 2004-11-22 | 2004-11-22 | El fiber and photocatalyst reaction vessel |
DE112004002320T DE112004002320T5 (de) | 2003-11-27 | 2004-11-22 | EL-Faser und Photokatalyse-Reaktionsgefäss |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-396743 | 2003-11-27 | ||
JP2003396743A JP2005158551A (ja) | 2003-11-27 | 2003-11-27 | Elファイバー及び光触媒反応容器 |
Publications (1)
Publication Number | Publication Date |
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WO2005053363A1 true WO2005053363A1 (ja) | 2005-06-09 |
Family
ID=34631520
Family Applications (1)
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PCT/JP2004/017677 WO2005053363A1 (ja) | 2003-11-27 | 2004-11-22 | Elファイバー及び光触媒反応容器 |
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JP (1) | JP2005158551A (ja) |
CN (1) | CN1887032A (ja) |
DE (1) | DE112004002320T5 (ja) |
WO (1) | WO2005053363A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102424465A (zh) * | 2011-10-24 | 2012-04-25 | 哈尔滨工程大学 | 一种电催化氧化和电Fenton技术协同降解酚类废水的方法 |
WO2021254795A1 (en) * | 2020-06-19 | 2021-12-23 | Admajora Sa | Filter medium for air and water purification and disinfection |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007144328A (ja) * | 2005-11-29 | 2007-06-14 | Shinshu Univ | 光触媒ファイバーとそれを使用した液体浄化装置 |
JP2008010408A (ja) * | 2006-06-02 | 2008-01-17 | Semiconductor Energy Lab Co Ltd | 発光素子及び発光装置 |
EP2810315A1 (en) * | 2012-01-30 | 2014-12-10 | Merck Patent GmbH | Nanocrystals on fibers |
IT201700017986A1 (it) * | 2017-02-17 | 2018-08-17 | Roberto Benedini | Sistema per la disinfezione e la sanificazione di ambienti. |
WO2018149980A1 (en) * | 2017-02-17 | 2018-08-23 | Roberto Benedini | System for disinfecting and sanitizing environments |
JP6963720B2 (ja) * | 2018-08-30 | 2021-11-10 | 日亜化学工業株式会社 | 発光装置 |
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- 2004-11-22 CN CN200480035279.1A patent/CN1887032A/zh active Pending
- 2004-11-22 DE DE112004002320T patent/DE112004002320T5/de not_active Withdrawn
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WO2021254795A1 (en) * | 2020-06-19 | 2021-12-23 | Admajora Sa | Filter medium for air and water purification and disinfection |
Also Published As
Publication number | Publication date |
---|---|
JP2005158551A (ja) | 2005-06-16 |
CN1887032A (zh) | 2006-12-27 |
DE112004002320T5 (de) | 2006-09-28 |
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