CN113578294A - Method for producing photocatalytic core material having high specific surface area and use thereof - Google Patents
Method for producing photocatalytic core material having high specific surface area and use thereof Download PDFInfo
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- CN113578294A CN113578294A CN202110615460.5A CN202110615460A CN113578294A CN 113578294 A CN113578294 A CN 113578294A CN 202110615460 A CN202110615460 A CN 202110615460A CN 113578294 A CN113578294 A CN 113578294A
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- housing
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 56
- 239000011162 core material Substances 0.000 title claims abstract description 48
- 239000012530 fluid Substances 0.000 claims abstract description 176
- 230000003197 catalytic effect Effects 0.000 claims abstract description 88
- 239000000758 substrate Substances 0.000 claims abstract description 79
- 239000011941 photocatalyst Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 37
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 27
- 239000006185 dispersion Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 17
- 238000007788 roughening Methods 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 9
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 238000002834 transmittance Methods 0.000 claims description 8
- 238000010146 3D printing Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 claims description 6
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 claims description 6
- 229910001632 barium fluoride Inorganic materials 0.000 claims description 6
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000005388 borosilicate glass Substances 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 229910021532 Calcite Inorganic materials 0.000 claims description 3
- -1 Polytetrafluoroethylene Polymers 0.000 claims description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 3
- XBJJRSFLZVLCSE-UHFFFAOYSA-N barium(2+);diborate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]B([O-])[O-].[O-]B([O-])[O-] XBJJRSFLZVLCSE-UHFFFAOYSA-N 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 206010061592 cardiac fibrillation Diseases 0.000 claims description 3
- 238000003486 chemical etching Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 230000002600 fibrillogenic effect Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 239000005361 soda-lime glass Substances 0.000 claims description 3
- 229910001887 tin oxide Inorganic materials 0.000 claims description 3
- 239000002585 base Substances 0.000 claims 29
- 229910052593 corundum Inorganic materials 0.000 claims 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 14
- 239000004408 titanium dioxide Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 11
- 239000000835 fiber Substances 0.000 description 9
- 239000004744 fabric Substances 0.000 description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 7
- 238000001035 drying Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 239000005416 organic matter Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
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- 125000006850 spacer group Chemical group 0.000 description 2
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- 230000015556 catabolic process Effects 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/14—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of germanium, tin or lead
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
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- B01J35/23—
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- B01J35/39—
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- B01J35/58—
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- B01J35/61—
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/06—Washing
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/343—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of ultrasonic wave energy
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention discloses a manufacturing method of a photocatalytic core material with high specific surface area and application thereof, wherein the manufacturing method comprises the following steps: (a) attaching a photocatalyst material to a substrate; and (b) curing the photocatalyst material to allow the substrate to form a base and allow the photocatalyst material to form a photocatalyst layer attached to the inner wall of the base for forming a series of fluid channels, so as to prepare the photocatalytic core material, such that the photocatalytic core material has a high specific surface area, and the contact area of fluid with the photocatalytic core material can be greatly increased, thereby improving the catalytic effect.
Description
Technical Field
The invention relates to the field of organic matters, in particular to a manufacturing method and application of a photocatalytic core material with high specific surface area.
Background
With the continuous and high-speed development of economic level, environmental problems are increasingly highlighted, such as water pollution problem and air pollution problem are increasingly serious. In recent years, people try to relieve the increasingly prominent environmental problems in various ways, wherein the photocatalytic technology has good application prospects in the field of environmental management due to the characteristics of low energy consumption, mild reaction conditions, simple and convenient operation, no secondary pollution and the like. However, the current photocatalytic technology is still in the experimental stage and the early stage of application, and how to improve the environmental therapeutic effect of the photocatalytic technology and promote the large scale of the photocatalytic technology should be the direction of the research of the inventors of the present application.
Disclosure of Invention
The invention aims to provide a manufacturing method of a photocatalytic core material with high specific surface area and application thereof, wherein the photocatalytic core material manufactured by the manufacturing method has high specific surface area so as to greatly improve the catalytic effect of the photocatalytic core material.
An object of the present invention is to provide a method for manufacturing a photocatalytic core material having a high specific surface area, which includes curing a photocatalytic material on a substrate to allow the substrate to form a base and allowing the photocatalytic material to form a photocatalyst layer attached to the base, and which has a large fluid contact area and allows ultraviolet light to pass therethrough, so that when a fluid flows through the photocatalytic core material, the contact area between the fluid and the photocatalytic core material is increased to effectively improve a catalytic effect, and an application thereof.
An object of the present invention is to provide a method for manufacturing a photocatalytic core material having a high specific surface area, wherein the substrate has good penetration and a high specific surface area, so that the photocatalytic core material can have a large fluid contact area, and an application thereof. Preferably, the substrate can have a high specific surface area by, but not limited to, surface roughening, material porosification, material fibrillation, multi-layer lamination, and crimping.
An object of the present invention is to provide a method for manufacturing a photocatalytic core material having a high specific surface area, which decomposes bacteria and/or organic substances in a gas or liquid while allowing the gas or liquid to pass therethrough, and a catalytic device manufactured using the same, which can be applied to the inside of a vehicle, a cabin, a refrigerator, etc., having a relatively closed space, and to the fields of water purification, cold chain transportation, organic substance degradation, etc.
An object of the present invention is to provide a method for manufacturing a photocatalytic core material having a high specific surface area, which is capable of extracting hydrogen gas from a liquid, and an application thereof.
According to one aspect of the present invention, there is provided a method for manufacturing a photocatalytic core material having a high specific surface area, wherein the method comprises the steps of:
(a) attaching a photocatalyst material to a substrate; and
(b) curing the photocatalytic material to allow the substrate to form a base and allowing the photocatalytic material to form a photocatalyst layer attached to the inner wall of the base for forming a series of fluid channels to produce the photocatalytic core material.
According to an embodiment of the present invention, the step (a) further comprises the steps of: cleaning the substrate and soaking the substrate in the photocatalyst dispersion liquid.
According to an embodiment of the present invention, the step (a) further comprises the steps of: cleaning the substrate and spraying the photocatalyst dispersion liquid on the substrate.
According to one embodiment of the invention, in step (a), the substrate is cleaned by means of a caustic wash.
According to one embodiment of the invention, in step (a), the substrate is cleaned in an acid wash.
According to one embodiment of the invention, in step (a), the substrate is cleaned by ultrasonic cleaning.
According to one embodiment of the present invention, the photocatalyst particle size in the photocatalyst dispersion is 1nm to 50 μm.
According to one embodiment of the present invention, the photocatalyst particle size in the photocatalyst dispersion is 3nm to 7 nm.
According to an embodiment of the present invention, the liquid phase of the photocatalyst dispersion is pure water, deionized water, an inorganic dispersant, an organic dispersant, or a mixture of an inorganic dispersant and an organic dispersant.
According to one embodiment of the invention, the substrate is a high uv transmittance substrate to allow more than 50% transmittance of uv light having a wavelength of 253nm to 420 nm.
According to one embodiment of the invention, the substrate is an ultraviolet reflective substrate to allow more than 50% reflectivity for ultraviolet light having a wavelength of 253nm to 420 nm.
According to one embodiment of the invention, the substrate is soda-lime glass, borosilicate glass, quartz glass (SiO2), sapphire glass (Al2O3), calcium fluoride (CaF2), barium fluoride (BaF2), magnesium fluoride (MgF2), calcite or barium borate (α -BBO).
According to one embodiment of the invention, the substrate is alumina (Al2O3), aluminum, Polytetrafluoroethylene (PTFE), or barium sulfate (BaSO 4).
According to an embodiment of the present invention, the photocatalyst material is titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), zirconium oxide (ZrO2), cadmium sulfide (CdS), or a doped modified material of the above materials.
According to an embodiment of the present invention, before the step (a), the manufacturing method further includes the steps of: (c) the substrate is allowed to have a high specific surface area in a manner of surface roughening, material porosification, material fibrillation, multilayer lamination or curling.
According to an embodiment of the invention, in the above method, the surface of the substrate is roughened in an additive physical roughening manner allowing the substrate to have a high specific surface area.
According to one embodiment of the invention, in the above method, the surface of the substrate is roughened by means of chemical etching to allow the substrate to have a high specific surface area.
According to an embodiment of the invention, in the above method, the means of additive is 3D printing, spraying or embossing.
According to an embodiment of the invention, in the above method, the substrate is subjected to a material porosification treatment by foaming, a chemical sol method, 3D printing, a precursor method or a sintering method.
According to one embodiment of the invention, the photocatalytic core material is used for manufacturing a catalytic device to form a fluid passage of the catalytic device, such that the fluid passage comprises a base portion having a series of fluid channels and a series of channel openings formed in an outer surface of the base portion, and a photocatalyst layer attached to an inner wall of the base portion for forming the fluid channels, wherein the catalytic device further comprises at least one light emitting portion, wherein the fluid passage allows a fluid to pass through the fluid channels of the base portion and allows ultraviolet light generated by the light emitting portion to pass through.
According to an embodiment of the present invention, the catalytic apparatus further comprises a housing, wherein the housing has a fitting space and an inlet end and an outlet end communicating with the fitting space at opposite ends of the housing, respectively, the fluid passage device is fitted to the fitting space of the housing, and the housing has a portion of the passage opening of the base portion corresponding to the inlet end of the housing formed as a fluid inlet of the base portion and a portion of the passage opening of the base portion corresponding to the outlet end of the housing formed as a fluid outlet of the base portion; wherein the inlet end of the housing is provided with the light emitting portion to allow ultraviolet light generated by the light emitting portion to pass into the fluid passage from the fluid inlet of the base portion, or the outlet end of the housing is provided with the light emitting portion to allow ultraviolet light generated by the light emitting portion to pass into the fluid passage from the fluid outlet of the base portion, or the light emitting portion is provided at a side portion of the fluid passage to allow ultraviolet light generated by the light emitting portion to pass into the fluid passage from the side portion of the fluid passage;
wherein the catalytic device further comprises an inlet end cap having a series of inlet end holes extending through opposite sides of the inlet end cap, wherein the light emitting portion is mounted to the inlet end cap, the inlet end cap is mounted to the inlet end of the housing, and the inlet end holes of the inlet end cap communicate with the fitting space of the housing such that the inlet end cap retains the light emitting portion at the inlet end of the housing; wherein the light emitting part is installed at the middle part of the inlet end cover;
wherein the catalytic device further comprises an outlet end cap having at least one outlet end hole extending through opposite sides of the outlet end cap, wherein the light emitting portion is mounted to the outlet end cap, the outlet end cap is mounted to the outlet end of the housing, and the outlet end hole of the outlet end cap communicates with the fitting space of the housing such that the outlet end cap retains the light emitting portion at the outlet end of the housing;
wherein the catalytic device further comprises at least one flow driver, wherein the flow driver is held in the fitting space of the housing and is disposed to pass a fluid through the fluid passing device; wherein the flow driver is disposed at the inlet end of the housing or the flow driver is disposed at the outlet end of the housing; wherein the flow driver comprises a frame having a central aperture, a drive motor, and a set of blades drivably mounted to the drive motor, and wherein the frame is mounted to the housing, the blades being rotatably retained in the central aperture of the frame.
According to another aspect of the present invention, there is further provided a catalytic device comprising:
at least one light emitting section; and
a base portion made of a photocatalyst material, wherein the base portion has a series of fluid passages and a series of passage openings formed in an outer surface of the base portion, wherein the base portion allows a fluid to pass through the fluid passages of the base portion and allows ultraviolet rays generated by the light emitting portion to pass therethrough.
According to an embodiment of the present invention, the catalytic apparatus further comprises a housing, wherein the housing has a fitting space and an inlet end and an outlet end communicating with the fitting space at opposite ends of the housing, respectively, the base is fitted to the fitting space of the housing, and the housing has a portion of the passage opening of the base corresponding to the inlet end of the housing formed as a fluid inlet of the base and a portion of the passage opening of the base corresponding to the outlet end of the housing formed as a fluid outlet of the base.
According to an embodiment of the present invention, the inlet end of the housing is provided with the light emitting portion to allow ultraviolet rays generated by the light emitting portion to pass into the base portion from the fluid inlet of the base portion, or the outlet end of the housing is provided with the light emitting portion to allow ultraviolet rays generated by the light emitting portion to pass into the base portion from the fluid outlet of the base portion.
According to one embodiment of the invention, the catalytic device further comprises at least one flow driver, wherein the flow driver is held in the mounting space of the housing and is arranged to pass fluid through the base.
Drawings
FIG. 1 is a perspective view of a photocatalytic core material according to a first preferred embodiment of the present invention.
Fig. 2A and 2B are schematic perspective views of a catalytic device according to a preferred embodiment of the invention from different viewing angles.
FIG. 3 is an exploded view of the catalytic device according to the above preferred embodiment of the present invention.
FIG. 4 is a schematic cross-sectional view of the catalytic device according to the above preferred embodiment of the present invention.
FIG. 5 is a schematic view of the catalytic device according to the above preferred embodiment of the present invention.
Fig. 6 is a schematic perspective view of a modified embodiment of the catalytic device according to the above preferred embodiment of the present invention.
Fig. 7 is a schematic perspective view of a modified embodiment of the catalytic device according to the above preferred embodiment of the present invention.
Fig. 8 is a schematic perspective view of a modified embodiment of the catalytic device according to the above preferred embodiment of the present invention.
Fig. 9 is a schematic perspective view of a modified embodiment of the catalytic device according to the above preferred embodiment of the present invention.
FIG. 10 is a schematic cross-sectional view of a catalytic device according to another preferred embodiment of the invention.
FIGS. 11A-11C are schematic views of a photocatalytic core material according to a second preferred embodiment of the present invention.
Fig. 12A to 12C are schematic views of a photocatalytic core material according to a third preferred embodiment of the present invention.
FIGS. 13A and 13B are schematic views of a photocatalytic core material according to a fourth preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Fig. 1 illustrates a photocatalytic core material 100 according to a preferred embodiment of the present invention, and fig. 2A to 5 illustrate a catalytic device according to a preferred embodiment of the present invention, to which the photocatalytic core material 100 is applied. In the following description, the photocatalytic core material 100, the method of manufacturing the photocatalytic core material 100, and the application of the photocatalytic core material 100 in the catalytic device, wherein the catalytic device includes a fluid passage device 10 and at least one light emitting portion 20, the fluid passage device 10 allows a fluid to pass through, the light emitting portion 20 is capable of generating ultraviolet light, and the ultraviolet light is allowed to pass through the fluid passage device 10, such that the ultraviolet light generated by the light emitting portion 20 and the fluid passage device 10 interact to decompose bacteria and/or organic substances in the fluid of the fluid passage device 10, wherein the photocatalytic core material 100 forms the fluid passage device 10 of the catalytic device when the photocatalytic core material 100 is applied to the catalytic device, will be disclosed and described. Preferably, the light emitting portion 20 is capable of generating ultraviolet light having a wavelength of 253nm to 420 nm.
Preferably, the fluid passage device 10 and the light emitting part 20 are disposed adjacent to each other, so that, on one hand, the ultraviolet light generated by the light emitting part 20 can pass through the fluid passage device 10 relatively directly to reduce the loss of the light emitting part 20 in the process of radiating the ultraviolet light in the direction of the fluid passage device 10, and on the other hand, the ultraviolet light generated by the light emitting part 20 can be radiated to each position of the fluid passage device 10, that is, by disposing the fluid passage device 10 and the light emitting part 20 adjacent to each other, the ultraviolet light generated by the light emitting part 20 can effectively pass through the fluid passage device 10 to ensure the catalytic effect of the catalytic device.
It is worth mentioning that the type of fluid is not limited in the catalytic device of the present invention, for example, in a preferred example of the catalytic device of the present invention, the fluid may be gas, that is, the fluid passes through the device 10 to allow the gas to flow through and decompose bacteria and/or organic matters in the gas to improve the quality of the gas, so that the catalytic device of the present invention can be applied to vehicles, cabins, refrigerators, and the like having relatively closed interiors; in another preferred example of the catalytic device of the present invention, the fluid may be a liquid, that is, the fluid passing device 10 allows the liquid to pass through and decomposes bacteria and/or organic substances in the liquid to improve the quality of the liquid, so that the catalytic device of the present invention can be applied to the fields of water purification, cold chain transportation, and the like. In addition, when the fluid passing device 10 of the catalytic apparatus allows water to pass through, the fluid passing device 10 formed of the photocatalytic core material 100 can produce hydrogen gas by evolving hydrogen from water.
Specifically, referring to fig. 2A to 5, the fluid passing device 10 includes a base 11 and a photocatalyst layer 12, wherein the base 11 has a series of fluid passages 111 and a series of passage openings 112 formed on an outer surface of the base 11, and the photocatalyst layer 12 is attached to an inner wall of the base 11 for forming the fluid passages 111. A portion of the channel openings 112 in the series of channel openings 112 of the base 11 are fluid inlets 1121 and another portion of the channel openings 112 are fluid outlets 1122, i.e., fluid is allowed to enter the fluid channel 111 through a portion of the channel openings 112 and exit the base 11 through another portion of the channel openings 112. The photocatalyst layer 12 attached to the inner wall of the base 11 for forming the fluid passage 111 can be contacted when a fluid flows in the fluid passage 111 of the base 11. When the ultraviolet light generated by the light emitting part 20 passes through the fluid passage device 10, the ultraviolet light generated by the light emitting part 20 and the photocatalyst layer 12 attached to the inner wall of the base part 11 for forming the fluid passage 111 of the fluid passage device 10 can cooperate with each other to decompose bacteria and/or organic substances in the fluid.
Preferably, the base portion 11 is made of glass so that the fluid passing device 10 has a good transparent effect, and thus the ultraviolet rays generated by the light emitting portion 20 can effectively pass through the fluid passing device 10. In other words, the fluid passage device 10 is transparent, so that the fluid passage device 10 allows the ultraviolet light generated by the light emitting portion 20 to pass through the fluid passage device 10 itself. For example, the base 11 is made of foam glass or glass fiber, and the inside of the base 11 has a honeycomb structure to form the fluid channel 111, so that the base 11 has a sufficiently large inner surface to greatly increase the area of the photocatalyst layer 12 attached to the base 11, and thus the fluid flowing through the fluid passage device 10 can sufficiently contact with the photocatalyst layer 12 to improve the catalytic effect of the catalytic device.
It is worth mentioning that the degree of transparency of the fluid passing device 10 is not limited in the sterilization apparatus of the present invention, and it is selected as required, for example, the base 11 of the fluid passing device 10 is made of foamed glass or glass fiber which improves the total reflection condition.
Preferably, the photocatalyst layer 12 is made of titanium dioxide (TiO)2) Or modified titanium dioxide material, so that when the ultraviolet light generated by the light-emitting part 20 passes through the fluid passing device 10, the ultraviolet light and the photocatalyst layer 12 can interact with each other to effectively decompose bacteria and/or organic matters in the fluid. Preferably, the particle size of the titanium dioxide is 1nm to 100 nm. More preferably, the titanium dioxide has a particle size of 1nm to 10 nm.
Alternatively, in other examples of the catalytic device of the present invention, the base portion 11 is made of porous ceramic or ceramic fiber to give the fluid passing device 10 high reflectivity to reflect light of UV band, so that the fluid passing device 10 allows ultraviolet light generated from the light emitting portion 20 to pass through the fluid passage 111 in a continuously reflected manner.
Further, the method of manufacturing the photocatalytic core material 100 includes the steps of: (a) attaching a photocatalyst material to a substrate; and (b) curing the photocatalyst material to allow the base material to form the base 11 and the photocatalyst material to form the photocatalyst layer 12 attached to the inner wall of the base 11 for forming a series of the fluid channels 111, to produce the photocatalytic core material 100.
Preferably, before the step (a), the manufacturing method further comprises the steps of: (c) the base 11 formed by the substrate has a high specific surface area so as to greatly increase the fluid contact area, thereby enabling the fluid to sufficiently contact the photocatalyst layer 12 to improve the catalytic effect of the catalytic device when the fluid flows through the fluid passing device 10. For example, the photocatalytic core material 100 shown in fig. 11A to 11C may be obtained by laminating a plurality of layers; the photocatalytic core material 100 shown in fig. 12A to 12C can be obtained by curling, and UV-resistant skeletons can be used for supporting between layers to keep good penetration between the layers; the photocatalytic core material 100 as shown in fig. 13A and 13B may be obtained by additive or 3D printing.
In a preferred example of the present invention, when the step (c) of the manufacturing method selects to allow the substrate to have a high specific surface area in a surface-roughened manner, the manufacturing method may further select to achieve surface-roughening of the substrate in a physically-roughened manner or to achieve chemical-roughening of the substrate in a chemically-roughened manner. Specifically, when the manner of physical roughening is selected by the manufacturing method to achieve the apparent roughening of the substrate, the manner of physical roughening may be additive, i.e., the surface of the substrate is roughened in an additive physical roughening manner to allow the substrate to have a high specific surface area, wherein the specific manner of additive is 3D printing, spraying or embossing. Accordingly, when the manner in which the manufacturing method selects chemical roughening to achieve the apparent roughening of the substrate, the specific manner of chemical roughening is chemical etching, i.e., roughening the surface of the substrate in a chemical agent etching manner to allow the substrate to have a high specific surface area.
In another preferred example of the present invention, when the step (c) of the manufacturing method selects a way of material porosification that allows the substrate to have a high specific surface area, the specific way of material porosification is foaming, a chemical sol method, 3D printing, a precursor method or a sintering method, i.e., the substrate is subjected to a material porosification treatment by foaming, a chemical sol method, 3D printing, a precursor method or a sintering method.
In a preferred embodiment of the present invention, the substrate is a high ultraviolet transmittance substrate to allow more than 50% transmittance of ultraviolet light with a wavelength of 253nm to 420nm, for example, soda-lime glass, borosilicate glass, quartz glass (SiO2), sapphire glass (Al2O3), calcium fluoride (CaF2), barium fluoride (BaF2), magnesium fluoride (MgF2), calcite, or barium borate (α -BBO).
In another preferred example of the present invention, the substrate is an ultraviolet reflective substrate to allow high transmittance of ultraviolet light, such as aluminum oxide (Al2O3), aluminum, Polytetrafluoroethylene (PTFE), or barium sulfate (BaSO 4). For example, for the substrate composed of quartz glass (SiO2), the substrate allows for a transmittance of more than 50% for ultraviolet light having a wavelength of 253nm to 420 nm.
In the step (a), the photocatalyst material is titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), zirconium oxide (ZrO2), cadmium sulfide (CdS), or a doped modified material of the above materials. For example, in one embodiment of the present invention, the photocatalyst material may be modified titanium dioxide doped with C or N or both C and N in titanium dioxide.
Preferably, the photocatalyst particle size in the photocatalyst dispersion is 1nm to 50 μm. More preferably, the photocatalyst particle size in the photocatalyst dispersion is 3nm to 7 nm.
In addition, the liquid phase of the photocatalyst dispersion liquid is pure water, deionized water, an inorganic dispersant, an organic dispersant or a mixture of the inorganic dispersant and the organic dispersant.
Further, in the step (a) of the manufacturing method of the present invention, first, the substrate is cleaned; and then soaking the substrate in the photocatalyst dispersion liquid or spraying the photocatalyst dispersion liquid on the substrate, so as to attach the photocatalyst layer on the substrate. Specifically, in the step (a), the substrate may be degreased by cleaning the substrate (i.e., alkaline washing, in other words, degreasing the substrate by cleaning the substrate by alkaline washing), and the substrate may be dried at a temperature of 80 ℃ to 200 ℃ (including 80 ℃ and 200 ℃) for 1h to 3h (including 1h and 3 h). Preferably, in the step (a), the substrate is cleaned in an acid washing manner to further enhance the cleaning effect. More preferably, in the step (a), the substrate is cleaned by ultrasonic cleaning to further enhance the cleaning effect. Alternatively, in one preferred example of the manufacturing method of the present invention, any one of the acid washing method and the ultrasonic cleaning method in the step (a) may be selected, and in another preferred example of the manufacturing method of the present invention, the acid washing method and the ultrasonic cleaning method in the step (a) may be performed simultaneously. In addition, the step (a) of the manufacturing method may be repeated a plurality of times.
Further, in the step (a) of the manufacturing method of the present invention, the cleaned substrate may be soaked in a titanium dioxide dispersion or a titanium dioxide dispersion is spray-coated on the substrate, and is subjected to a drying treatment, the drying temperature may be 80 ℃ to 200 ℃ (including 80 ℃ and 200 ℃), and the drying time may be 1h to 3h (including 1h and 3 h).
In the step (b) of the manufacturing method of the present invention, the photocatalyst material is cured by heat treatment. For example, after thermal curing is performed for 10min to 30min (including 10min and 30min) in an environment with a temperature of 200 ℃ to 1000 ℃ (including 200 ℃ and 1000 ℃), slow cooling or natural cooling is performed to normal temperature, and the photocatalytic core material 100 of the present invention can be prepared.
In a specific example of the method for manufacturing the photocatalytic core material 100 according to the present invention, the photocatalytic core material 100 may be manufactured by providing a clean aluminum oxide (Al2O3) ceramic woven fiber cloth, spraying a titanium dioxide dispersion liquid having a particle size of 5nm uniformly on the surface of the ceramic woven fiber cloth, drying, performing heat preservation treatment at 800 ℃ for 10min to 30min, and then naturally cooling to room temperature.
In another specific example of the method for manufacturing the photocatalytic core material 100 according to the present invention, first, the base material of borosilicate glass having through holes of a specific outer shape is 3D-printed, and the components by weight of the base material are Sio 2: 80 plus or minus 0.5 percent; B2O 3: 13 plus or minus 0.2 percent; al2O 3: 2.4 plus or minus 0.2 percent; na2O (+ K2O): 4.3 +/-0.2%, cleaning the base material, soaking the base material in titanium dioxide dispersion liquid with the particle size of 5nm, performing ultrasonic vibration for 5min, taking out and drying, performing heat preservation treatment at the temperature of 500-600 ℃ for 10-30 min, and naturally cooling to the normal temperature to obtain the photocatalytic core material 100.
In another specific example of the manufacturing method for manufacturing the photocatalytic core material 100 according to the present invention, a glass fiber cloth having a fiber diameter of 60 μm is first provided, and a multi-layer material is formed by winding a spacer material, and then a titanium dioxide dispersion liquid having a particle size of 5nm is uniformly sprayed on the surface of the fiber cloth and dried, and then, the fiber cloth is heat-treated at a temperature of 450 to 600 ℃ for 10 to 30min and then naturally cooled to a normal temperature, thereby manufacturing the photocatalytic core material 100. Optionally, the manufacturing method allows: first, a dispersion of titanium dioxide having a particle size of 5nm is uniformly sprayed on the surface of a fiber cloth and dried, and then, after curing, the photocatalytic core material 100 is obtained by winding a glass fiber cloth through a spacer to form a plurality of layers.
Further, with continued reference to fig. 2A to 5, the catalytic apparatus includes a housing 30, the housing 30 having a fitting space 31 and an inlet end 32 and an outlet end 33 communicating with the fitting space 31 at opposite ends of the housing 30, respectively, wherein the fluid passage device 10 is fitted to the fitting space 31 of the housing 30, so as to hide the fluid passage device 10 from the fitting space 31 of the housing 30, while the housing 30 has a portion of the passage opening 112 of the base portion 11 corresponding to the inlet end 32 of the housing 30 forming the fluid inlet 1121 and a portion of the passage opening 112 of the base portion 11 corresponding to the outlet end 33 of the housing 30 forming the fluid outlet 1122. In other words, the housing 30 surrounds the circumferential direction of the fluid passing device 10, and defines a series of the fluid openings 112 of the base 11 exposed to the surface as the fluid inlet 1121 and the fluid outlet 1122.
It is to be noted that the shape of the housing 30 is not limited in the catalytic device of the present invention, and for example, in this specific example of the catalytic device shown in fig. 2A to 5, the housing 30 is a rectangular parallelepiped; alternatively, in other examples of the catalytic device, the housing 30 is cylindrical.
In this specific example of the catalytic device shown in fig. 2A to 5, the light-emitting portion 20 is held at the inlet end 32 of the housing 30, that is, the light-emitting portion 20 generates ultraviolet light at the inlet end 32 of the housing 30 and allows the ultraviolet light to radiate toward the fluid passage device 10, so that the ultraviolet light generated by the light-emitting portion 20 can pass through the fluid passage device 10 to decompose bacteria and/or organic substances in the fluid passing through the fluid passage device 10.
Specifically, with continued reference to fig. 2A to 5, the catalytic device includes an inlet end cap 40, the inlet end cap 40 having a series of inlet end holes 41, the inlet end holes 41 penetrating through opposite sides of the inlet end cap 40, wherein the light emitting portion 20 is mounted to the inlet end cap 40, the inlet end cap 40 is mounted to the inlet end 32 of the housing 30, and the inlet end holes 41 of the inlet end cap 40 communicate with the fitting space 31 of the housing 30, so that the inlet end cap 40 holds the light emitting portion 20 at the inlet end 32 of the housing 30.
Preferably, the light-emitting portion 20 is installed in the middle of the inlet end cap 40 to allow the inlet end holes 41 of the inlet end cap 40 to surround the light-emitting portion 20, so that, on one hand, fluid can uniformly enter the assembly space 31 of the housing 30 around the light-emitting portion 20 through the inlet end caps 40 of the inlet end cap 40, and on the other hand, ultraviolet light generated by the light-emitting portion 20 can be substantially uniformly radiated to various positions of the fluid passage device 10, in this way, the catalytic effect of the catalytic device is advantageously ensured.
It should be noted that the installation manner between the inlet end cover 40 and the outer shell 30 is not limited in the catalytic device of the present invention, for example, the inlet end cover 40 and the outer shell 30 may be installed by screwing or by gluing.
With continued reference to fig. 2A to 5, the catalytic apparatus further includes an outlet end cover 50, the outlet end cover 50 having at least one outlet end hole 51, the outlet end hole 51 penetrating through two opposite sides of the outlet end cover 50, wherein the outlet end cover 50 is mounted to the outlet end 33 of the housing 30, and the outlet end hole 51 of the outlet end cover 50 communicates with the fitting space 31 of the housing 30.
It should be noted that the installation manner between the outlet end cap 50 and the housing 30 is not limited in the catalytic device of the present invention, for example, the outlet end cap 50 and the housing 30 may be installed by screwing or by gluing.
Continuing with fig. 2A-5, the catalytic device further includes at least one flow driver 60, wherein the flow driver 60 is retained in the mounting space 31 of the housing 30, and the flow driver 60 is configured to drive fluid through the fluid passing device 10, such that the catalytic device provides good catalytic performance in a relatively enclosed space.
Specifically, the flow driver 60 includes a driving motor 61 and a set of blades 62 drivably mounted on the driving motor 61, when the driving motor 61 is supplied with electric energy, the driving motor 61 can drive the blades 62 to rotate, and the rotation of the blades 62 can make the fluid outside the catalytic device enter the fluid channel 111 of the base 11 from the fluid inlet 1121 and exit the fluid channel 111 of the base 11 from the fluid outlet 1122, so as to drive the fluid through the fluid passing device 10.
The driver 60 further includes a frame 63, the frame 63 has a central through hole 631, the blade 62 is rotatably held in the central through hole 631 of the frame 63, wherein the frame 63 is mounted to the housing 30 to hold the driver 60 in the mounting space 31 of the housing 30. Alternatively, in other examples of the catalytic device, the frame 63 of the flow driver 60 is mounted to the outlet end cover 50 to hold the flow driver 60 in the mounting space 31 of the housing 30 through the outlet end cover 50. Alternatively, in other examples of the catalytic device, the flow driver 60 is not provided with the frame 63, but the driving motor 61 is directly mounted to the outlet end cover 50, that is, the driving motor 61 is mounted to the outlet end cover 50, so that the blades 62 are rotatably held at the side of the outlet end cover 50.
Preferably, the rotational speed of the drive motor 61 of the driver 60 can be controlled, thus controlling the rotation of the blades 62, in such a way that the driver 60 can control the speed of fluid through the fluid pass-through 10 suitable for controlling the operating state of the catalytic device.
With continued reference to fig. 2A to 5, the catalytic apparatus further includes an electric control portion 70, wherein the electric control portion 70 is disposed on the housing 30, and the light-emitting portion 20 and the driving motor 61 of the flow driver 60 are respectively connected to the electric control portion 70, the electric control portion 70 is capable of controlling a state in which electric power is supplied to the light-emitting portion 20 and the driving motor 61 of the flow driver 60, wherein when the electric control portion 70 allows electric power to be supplied to the light-emitting portion 20, the light-emitting portion 20 is capable of generating ultraviolet light, and the ultraviolet light is capable of radiating in a direction of the fluid passage 10, and when the electric control portion 70 allows electric power to be supplied to the driving motor 61 of the flow driver 60, the driving motor 61 is capable of driving the blade 62 to rotate to drive fluid to pass through the fluid passage 10.
Specifically, the electronic control unit 70 includes a circuit board 71, and a control switch 72, a set of electronic components 73 and a power supply port 74 that are respectively connected to the circuit board 71, and the light emitting unit 20 and the driving motor 61 of the current driver 60 are respectively connected to the circuit board 71. The type of the control switch 72 is not limited, and it may be a mechanical switch or an electronic switch. The electronic components 73 may be resistors, capacitors, inductors, etc. and are attached to the circuit board 71, and these electronic components 73 can cooperate with each other to perform the functions of boosting voltage, stabilizing current, etc. The type of the power supply port 74 is not limited, and it may be a USB port. External power can be supplied to the electronic control part 70 through the power supply port 74, and the control switch 72 can control whether or not power is supplied to the light emitting part 20 and/or the driving motor 61 of the driver 60.
Fig. 5 illustrates a process of decomposing organic matter by the catalytic apparatus of the present invention, which is applied to decompose bacteria and/or organic matter in gas. External power can be supplied to the electronic control part 70 through the power supply port 74, and the control switch 72 can control power to be supplied to the light emitting part 20 and the driving motor 61 of the current driver 60, respectively, in which case, on the one hand, the light emitting part 20 can generate ultraviolet rays, and the ultraviolet rays generated by the light emitting part 20 can be radiated from the inlet end 32 of the housing 30 toward the fluid passing device 10, for example, the light emitting section 20 can generate ultraviolet light having a wavelength of 320nm to 420nm, and on the other hand, the driving motor 61 can drive the blades 62 to rotate at the outlet end 33 of the housing 30, and the flow driver 60 discharges the gas in the assembly space 31 of the housing 30 through the central through hole 631 of the flow driver 60 and the outlet end hole 51 of the outlet end cover 50 to reduce the gas pressure inside the catalytic device. At this time, the external air enters the fitting space 31 of the housing 30 through the inlet end hole 41 of the inlet end cover 40, and further enters the fluid passage 111 of the base 11 from the fluid inlet 1121 of the base 11. The gas entering the fluid passage 111 of the base 11 can sufficiently contact the photocatalyst layer 12 attached to the inner wall of the base 11 for forming the fluid passage 111. It should be noted that the extended shape of the fluid passages 111 of the base 11 shown in fig. 2A to 5 is merely an example and does not constitute a limitation to the catalytic device of the present invention, and in order to further increase the contact area between the gas entering the fluid passages 111 of the base 11 and the photocatalyst layer 12, the fluid passages 111 of the base 11 are designed to have a honeycomb structure. The ultraviolet rays generated from the light emitting part 20 can pass through the fluid passing device 10 while the gas contacts the photocatalyst layer 12, and at this time, the ultraviolet rays and the photocatalyst layer 12 interact with each other to decompose bacteria and/or organic substances in the gas, thereby decomposing the bacteria and/or organic substances in the gas.
Fig. 6 shows a modified example of the catalytic apparatus of the present invention, and unlike the catalytic apparatus shown in fig. 2A to 5, in this modified example of the catalytic apparatus shown in fig. 6, the electric control section 70 further includes a rechargeable battery 75, the rechargeable battery 75 is connected to the circuit board 71, and the control switch 72 can control the state of supply of the rechargeable battery 75 to the light emitting section 20 and/or the drive motor 61 of the driver 60. In other words, the control switch 72 can control the rechargeable battery 75 to supply power to the light emitting unit 20 so that the light emitting unit 20 generates ultraviolet light, and the control switch 72 can control the rechargeable battery 75 to supply power to the driving motor 61 of the current driver 60 so that the driving motor 61 drives the blade 62 to rotate.
Fig. 7 shows another modified example of the catalytic device of the present invention, which is different from the catalytic device shown in fig. 2A to 5, in the modified example of the catalytic device shown in fig. 7, the light emitting part 20 is installed at the middle of the outlet end cover 50 to hold the light emitting part 20 at the outlet end 33 of the housing 30 by the outlet end cover 50, and the flow driver 60 is disposed at the inlet end 32 of the housing 30.
Alternatively, the light emitting part 20 may be held at a side of the fluid passage 10 to allow the ultraviolet light generated by the light emitting part 20 to be radiated from the side of the fluid passage 10 toward the fluid passage 10. For example, in the specific example of the catalytic device shown in fig. 8, the light-emitting portion 20 has a long shape, or a series of the light-emitting portions 20 are arranged along the length direction of the housing 30, so that the extending direction of the light-emitting portion 20 coincides with the extending direction of the fluid passage 10, and when the light-emitting portion 20 is supplied with electric power, the light-emitting portion 20 can generate light on the side of the fluid passage 10 and radiate from the side of the fluid passage 10 toward the fluid passage 10. Preferably, the light emitting portions 20 are held on a plurality of sides of the fluid passage device 10, and the light emitting portions 20 can generate light on the plurality of sides of the fluid passage device 10 and radiate the light from the plurality of sides of the fluid passage device 10 toward the fluid passage device 10.
Fig. 9 shows a modified example of the catalytic apparatus of the present invention, and unlike the catalytic apparatus shown in fig. 2A to 5, in this modified example of the catalytic apparatus shown in fig. 9, the flow driver 60 is provided at the inlet end 32 of the housing 30. Preferably, the flow driver 60 is shielded by the inlet end cap 40 to conceal the flow driver 60. Preferably, the light emitting portion 20 is disposed at the middle of the outlet end cap 50, so that the light emitting portion 20 is held at one end of the fluid passage device 10 by the outlet end cap 50.
Fig. 10 shows another preferred example of the catalytic device of the present invention, which is different from the catalytic device shown in fig. 2A to 5, in the specific example of the catalytic device shown in fig. 10, the catalytic device includes a fluid passage device 10 and at least one light emitting part 20, the fluid passage device 10 includes a base part 11, the base part 11 has a series of fluid passages 111 and a series of passage openings 112 formed in an outer surface of the base part 11, and the base part 11 allows a fluid to flow through the fluid passages 111 and allows ultraviolet rays generated by the light emitting part 20 to pass through, wherein the base part 11 is formed of a photocatalyst material, for example, the photocatalyst material forming the base part 11 is titanium dioxide solid fibers, is titanium oxide nanotube fibers, 3D-printed porous titanium dioxide, and the base part 11 has a high specific surface area, thus, when the fluid flows through the fluid channel 111 of the base portion 11, the contact area between the fluid and the base portion 11 can be greatly increased, and subsequently, when the ultraviolet light generated by the light emitting portion 20 passes through the base portion 11, the ultraviolet light and the base portion 11 can interact with each other to decompose bacteria and/or organic matters in the fluid passing through the fluid passing device 10.
It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily conceivable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (26)
1. A method of manufacturing a photocatalytic core material having a high specific surface area, the method comprising the steps of:
(a) attaching a photocatalyst material to a substrate; and
(b) curing the photocatalytic material to allow the substrate to form a base and allowing the photocatalytic material to form a photocatalyst layer attached to the inner wall of the base for forming a series of fluid channels to produce the photocatalytic core material.
2. The manufacturing method according to claim 1, wherein the step (a) further comprises the steps of: cleaning the substrate and soaking the substrate in the photocatalyst dispersion liquid.
3. The manufacturing method according to claim 1, wherein the step (a) further comprises the steps of: cleaning the substrate and spraying the photocatalyst dispersion liquid on the substrate.
4. The production method according to claim 2 or 3, wherein in the step (a), the substrate is cleaned by alkali washing.
5. The manufacturing method according to claim 4, wherein in the step (a), the substrate is cleaned in an acid-washing manner.
6. The manufacturing method according to claim 4, wherein in the step (a), the substrate is cleaned by ultrasonic cleaning.
7. The manufacturing method according to claim 5, wherein in the step (a), the substrate is cleaned by ultrasonic cleaning.
8. The process according to claim 2 or 3, wherein the photocatalyst particle size in the photocatalyst dispersion is 1nm to 50 μm.
9. The process according to claim 8, wherein the photocatalyst particle size in the photocatalyst dispersion is 3nm to 7 nm.
10. The production process according to claim 2 or 3, wherein the liquid phase of the photocatalyst dispersion is pure water, deionized water, an inorganic dispersant, an organic dispersant or a mixture of an inorganic dispersant and an organic dispersant.
11. The production method according to any one of claims 1 to 3, wherein the substrate is a high ultraviolet transmittance substrate to allow transmittance of more than 50% of ultraviolet light having a wavelength of 253nm to 420 nm.
12. The production method according to any one of claims 1 to 3, wherein the substrate is an ultraviolet-reflective substrate to allow reflectance of ultraviolet light having a wavelength of 253nm to 420nm to exceed 50%.
13. The production method according to claim 11, wherein the substrate is soda-lime glass, borosilicate glass, quartz glass (SiO2), sapphire glass (Al2O3), calcium fluoride (CaF2), barium fluoride (BaF2), magnesium fluoride (MgF2), calcite, or barium borate (α -BBO).
14. The production method according to claim 12, wherein the base material is alumina (Al2O3), aluminum, Polytetrafluoroethylene (PTFE), or barium sulfate (BaSO 4).
15. The production method according to any one of claims 1 to 3, wherein the photocatalyst material is titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), zirconium oxide (ZrO2), cadmium sulfide (CdS), or a doped modified material of the above materials.
16. The manufacturing method according to any one of claims 1 to 3, wherein, before the step (a), the manufacturing method further comprises the steps of: (c) the substrate is allowed to have a high specific surface area in a manner of surface roughening, material porosification, material fibrillation, multilayer lamination or curling.
17. The method of manufacturing according to claim 16, wherein in the above method the surface of the substrate is roughened in an additive physical roughening manner allowing the substrate to have a high specific surface area.
18. The manufacturing method according to claim 16, wherein in the above method, the surface of the substrate is roughened by chemical etching to allow the substrate to have a high specific surface area.
19. A method of manufacturing according to claim 17, wherein in the method the additive is 3D printed, sprayed or embossed.
20. The manufacturing method according to claim 16, wherein in the above method, the base material is subjected to material porosification treatment by foaming, a chemical sol method, 3D printing, a precursor method, or a sintering method.
21. The manufacturing method according to claim 1, wherein the photocatalytic core material is used for manufacturing a catalytic device to form a fluid passage of the catalytic device, such that the fluid passage comprises a base portion having a series of fluid passages and a series of passage openings formed in an outer surface of the base portion, and a photocatalyst layer attached to an inner wall of the base portion for forming the fluid passages, wherein the catalytic device further comprises at least one light-emitting portion, wherein the fluid passage allows a fluid to pass through the fluid passages of the base portion and allows ultraviolet rays generated from the light-emitting portion to pass therethrough.
22. The manufacturing method according to claim 21, wherein the catalytic apparatus further comprises a housing, wherein the housing has a fitting space and an inlet end and an outlet end communicating with the fitting space at opposite ends of the housing, respectively, the fluid passing device being fitted to the fitting space of the housing, the housing having a portion of the passage opening of the base portion corresponding to the inlet end of the housing forming a fluid inlet of the base portion and a portion of the passage opening of the base portion corresponding to the outlet end of the housing forming a fluid outlet of the base portion; wherein the inlet end of the housing is provided with the light emitting portion to allow ultraviolet light generated by the light emitting portion to pass into the fluid passage from the fluid inlet of the base portion, or the outlet end of the housing is provided with the light emitting portion to allow ultraviolet light generated by the light emitting portion to pass into the fluid passage from the fluid outlet of the base portion, or the light emitting portion is provided at a side portion of the fluid passage to allow ultraviolet light generated by the light emitting portion to pass into the fluid passage from the side portion of the fluid passage;
wherein the catalytic device further comprises an inlet end cap having a series of inlet end holes extending through opposite sides of the inlet end cap, wherein the light emitting portion is mounted to the inlet end cap, the inlet end cap is mounted to the inlet end of the housing, and the inlet end holes of the inlet end cap communicate with the fitting space of the housing such that the inlet end cap retains the light emitting portion at the inlet end of the housing; wherein the light emitting part is installed at the middle part of the inlet end cover;
wherein the catalytic device further comprises an outlet end cap having at least one outlet end hole extending through opposite sides of the outlet end cap, wherein the light emitting portion is mounted to the outlet end cap, the outlet end cap is mounted to the outlet end of the housing, and the outlet end hole of the outlet end cap communicates with the fitting space of the housing such that the outlet end cap retains the light emitting portion at the outlet end of the housing;
wherein the catalytic device further comprises at least one flow driver, wherein the flow driver is held in the fitting space of the housing and is disposed to pass a fluid through the fluid passing device; wherein the flow driver is disposed at the inlet end of the housing or the flow driver is disposed at the outlet end of the housing; wherein the flow driver comprises a frame having a central aperture, a drive motor, and a set of blades drivably mounted to the drive motor, and wherein the frame is mounted to the housing, the blades being rotatably retained in the central aperture of the frame.
23. A catalytic device, comprising:
at least one light emitting section; and
a base portion made of a photocatalyst material, wherein the base portion has a series of fluid passages and a series of passage openings formed in an outer surface of the base portion, wherein the base portion allows a fluid to pass through the fluid passages of the base portion and allows ultraviolet rays generated by the light emitting portion to pass therethrough.
24. The catalytic device of claim 23, further comprising a housing, wherein the housing has a fitting space and an inlet end and an outlet end communicating with the fitting space at opposite ends of the housing, respectively, the base being fitted to the fitting space of the housing, the housing having a portion of the passage opening of the base corresponding to the inlet end of the housing forming a fluid inlet of the base and a portion of the passage opening of the base corresponding to the outlet end of the housing forming a fluid outlet of the base.
25. The catalytic device of claim 24, wherein the inlet end of the housing is provided with the light-emitting portion to allow ultraviolet light generated by the light-emitting portion to pass into the base portion from the fluid inlet of the base portion, or the outlet end of the housing is provided with the light-emitting portion to allow ultraviolet light generated by the light-emitting portion to pass into the base portion from the fluid outlet of the base portion.
26. The catalytic device of claim 24, further comprising at least one flow driver, wherein the flow driver is retained in the mounting space of the housing and is configured to move fluid through the base.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121114A (en) * | 2007-07-24 | 2008-02-13 | 西北大学 | Continuous mobile type purifying air and water nano-crystalline photocatalysis reactor |
| US20100176067A1 (en) * | 2008-10-31 | 2010-07-15 | Boyd Joel E | Photocatalytic reactor and process for photocatalysis |
| CN104150561A (en) * | 2014-08-18 | 2014-11-19 | 南京工业大学 | Photocatalytic disinfection reactor used for disinfecting reclaimed water and rainwater, photocatalysis material and preparation method thereof, application and application method thereof |
| CN104307357A (en) * | 2014-09-19 | 2015-01-28 | 苏州博菡环保科技有限公司 | Photocatalyst purifier |
| CN204138380U (en) * | 2014-10-23 | 2015-02-04 | 卓剑锋 | A kind of photocatalysis treatment device |
| JP2017225629A (en) * | 2016-06-22 | 2017-12-28 | 美浜株式会社 | Sterilization apparatus |
| CN108557946A (en) * | 2018-04-17 | 2018-09-21 | 济南良乔环保设备有限公司 | A kind of high efficiency photocatalysis reaction member, production method and disinfecting device |
-
2021
- 2021-06-02 CN CN202110615460.5A patent/CN113578294A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121114A (en) * | 2007-07-24 | 2008-02-13 | 西北大学 | Continuous mobile type purifying air and water nano-crystalline photocatalysis reactor |
| US20100176067A1 (en) * | 2008-10-31 | 2010-07-15 | Boyd Joel E | Photocatalytic reactor and process for photocatalysis |
| CN104150561A (en) * | 2014-08-18 | 2014-11-19 | 南京工业大学 | Photocatalytic disinfection reactor used for disinfecting reclaimed water and rainwater, photocatalysis material and preparation method thereof, application and application method thereof |
| CN104307357A (en) * | 2014-09-19 | 2015-01-28 | 苏州博菡环保科技有限公司 | Photocatalyst purifier |
| CN204138380U (en) * | 2014-10-23 | 2015-02-04 | 卓剑锋 | A kind of photocatalysis treatment device |
| JP2017225629A (en) * | 2016-06-22 | 2017-12-28 | 美浜株式会社 | Sterilization apparatus |
| CN108557946A (en) * | 2018-04-17 | 2018-09-21 | 济南良乔环保设备有限公司 | A kind of high efficiency photocatalysis reaction member, production method and disinfecting device |
Non-Patent Citations (1)
| Title |
|---|
| 汪洋: "《气体的吸附及薄膜材料的应用》", 国防工业出版社, pages: 2 - 3 * |
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