WO2014098641A1 - Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления - Google Patents
Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления Download PDFInfo
- Publication number
- WO2014098641A1 WO2014098641A1 PCT/RU2012/001086 RU2012001086W WO2014098641A1 WO 2014098641 A1 WO2014098641 A1 WO 2014098641A1 RU 2012001086 W RU2012001086 W RU 2012001086W WO 2014098641 A1 WO2014098641 A1 WO 2014098641A1
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- WIPO (PCT)
- Prior art keywords
- titanium dioxide
- dioxide powder
- photocatalytic element
- photocatalytic
- glass balls
- Prior art date
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000746 purification Methods 0.000 title abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000011521 glass Substances 0.000 claims abstract description 40
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000011324 bead Substances 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 230000000249 desinfective effect Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 238000003486 chemical etching Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 239000000725 suspension Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004887 air purification Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 201000008225 Klebsiella pneumonia Diseases 0.000 description 1
- 241000588747 Klebsiella pneumoniae Species 0.000 description 1
- 206010035717 Pneumonia klebsiella Diseases 0.000 description 1
- 206010057190 Respiratory tract infections Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000001089 mineralizing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- B01J35/39—Photocatalytic properties
-
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- 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
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- C—CHEMISTRY; METALLURGY
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- C02F2305/10—Photocatalysts
Definitions
- the invention relates to the field of purification and disinfection of air and water, in particular, to a design and method for manufacturing a photocatalytic element, which can be used as the main functional unit in molecular and complex purification devices using photocatalysis.
- Photoactivated catalytic oxidative destruction of organic pollutants on titanium dioxide under the influence of ultraviolet light is a promising method for cleaning and disinfecting air and water.
- the method is characterized by high efficiency, economy, environmental friendliness, allowing you to destroy almost any pollutants of organic nature by completely mineralizing them to water and carbon dioxide.
- the main functional unit of photocatalytic cleaning devices, ensuring their efficiency and durability, is the photocatalytic element, which is a design that combines a nanocrystalline catalyst and a carrier of a given shape, installed in the area of UV radiation.
- the photocatalytic element can be used as part of devices for cleaning and disinfecting air in medical institutions, kindergartens, schools, offices, cinemas, residential buildings, etc. to effectively combat the spread of respiratory infections, remove toxic pollutants and unpleasant odors.
- Patent Number: 5,919,726; Date of Patent: Jul. 6.1999) according to which at the first stage on a substrate of any material (metal, cement, clay, sand, gravel, ceramics, plastic, wood, stone, glass, etc.) is applied in any way (by spraying, brushing and other) sub-slug -h with a thickness of 0.05 to 2 microns, containing silica gel with a particle size of about 20 to 50 microns, which is fixed by heat treatment at a temperature of from 100 to 900 ° C for 3-30 minutes.
- the sublayer is treated with titanium tetrachloride in a liquid or vapor state (water vapor may be added).
- the heat treatment of the obtained material is carried out at a temperature of 150-
- the main disadvantage of this method of producing photocatalytic material is a complex and environmentally hazardous process associated with the use of titanium tetrachloride, a substance with high volatility and toxicity.
- titanium tetrachloride a substance with high volatility and toxicity.
- titanium dioxide when applying a layer of titanium dioxide as a result of hydrolysis of TiCl 4 , toxic and corrosive aggressive hydrogen chloride is released.
- the bactericidal activity of the obtained samples of materials is insufficient for their use in air purification and disinfection devices.
- a known photocatalytic filter for air purification (United States Patent; Patent Number: US 6,491,883 B2; Date of Patent: Dec. 10,2002).
- the filter consists of a coating deposited on the base material of a thickness of 5 to 60 microns, which includes:
- - particles transmitting ultraviolet light (such as glass particles or fibers) with a minimum dimension of 0.2 to 50 microns in an amount of 5 to 60% by weight;
- the coating has good adhesion to the base material and is capable of transmitting ultraviolet light into the volume, however, the use of finely dispersed components, especially with a mixture with a clay binder, it is not possible to ensure good gas permeability of the coating and the effective operation of the particles of photocatalytic T 2 in the coating volume.
- the device consists of air inlet and outlet and a volume for air to flow between them.
- One or more elements with a reaction surface and one or more ultraviolet light sources are installed in the volume.
- the reaction surface contains catalytic material and occupies at least 50% of the inner surface of the device.
- the catalytic material titanium dioxide or a material containing it is used.
- sources of ultraviolet light fluorescent tubes or LEDs are used. Pumping air through the volume of the device is carried out by a fan.
- the reaction surface of the elements may contain nano-zeolites and (or) nanosilver.
- the use of freely poured elements coated with a catalyst creates a large reaction surface in contact with the cleaned air, however, the possibility of moving loose elements relative to each other will inevitably lead to mechanical wear of the catalytic layer as a result of friction and removal of the resulting dust from the device, as well as to a decrease in the service life catalyst.
- the catalyst should be applied to the entire surface of the carrier, including the surface of the internal pores.
- the closest set of essential features to the claimed invention is a photocatalytic element and a method for its production (patent
- a method of manufacturing such a photocatalytic element includes:
- a carrier of a given shape by sintering glass balls with a diameter of 0.1-1.5 mm at a temperature below the softening temperature of the glass in a shell of metal, graphite or easily destructible material, cooling, removing the carrier from the shell, activating the surface of the carrier in pairs or 1-2% solution hydrofluoric acid, application of titanium dioxide powder to the surface of the carrier from an aqueous suspension of the powder, drying of the carrier in air.
- the objective of the invention is the creation of a new photocatalytic element, which is characterized by:
- the photocatalytic element for cleaning and disinfecting air and water contains:
- porous carrier of a given shape with a pore size of from 0.1 mm to 0.5 mm and a volume fraction of pores of 20% to 40%, consisting of sintered glass beads, the surface of which has a relief in depth from 0.5 ⁇ m to 5 ⁇ m, and titanium dioxide powder with a specific surface area of 150-400 m 2 / g deposited on the glass surface in an amount of 0.5-2% with respect to the mass of the photocatalytic element.
- a photocatalytic element which includes:
- Figure 1 shows the surface of the carrier before (1) and after (2) acid modification.
- the most important factor determining the final activity of the photocatalytic element is the pH of the aqueous suspension from which the deposition occurs.
- it is necessary to strictly adhere to the indicated acidity of the suspension (pH 2.9 ⁇ 0.1). This technique, combined with the use of titanium dioxide powder with a high specific surface area (150-400 m 2 / g), allows to obtain photocatalytic elements with maximum activity.
- Figure 2 shows the dependence of the photocatalytic activity of titanium dioxide on the pH of the suspension.
- Glass balls (fraction 0.8-1 mm) are poured before filling into a cylindrical channel of a collapsible stainless steel shell having an outer diameter of 86 mm, a width of 6 mm and a height of 420 mm.
- the shell is placed in an oven and the balls are sintered at a temperature of 15 ° C above the temperature of the glass softening onset (about 690 ° C) for 1 h 20 min. After cooling to room temperature, the shell is disassembled and the resulting carrier is removed in the form of a porous glass tube.
- the surface of the carrier is modified by immersion first in concentrated hydrofluoric acid for 1 minute, then washed with water and treated with concentrated sulfuric acid for 3 minutes, washed with water and dried in an oven at a temperature of 100 ° C until the moisture is completely removed.
- An aqueous suspension is prepared from distilled water and anatase-modified titanium dioxide powder with a specific surface area of 350 m / g and a titanium dioxide content of 10 wt.%.
- the pH of the suspension was adjusted to a value of 2.9 ⁇ 0.1.
- the dried carrier is immersed in the resulting suspension, recovered and dried in an oven at a temperature of 150 ° C.
- the finished photocatalytic element contains:
- porous tubular carrier consisting of sintered glass balls with a modified surface, 420 mm long, 86 mm in diameter, with a wall thickness of 6 mm;
- Glass balls (fraction 0.8-1 mm) are poured before filling into a flat slotted channel of a collapsible stainless steel shell having a length of 60 mm, a width of 5 mm and a height of 400 mm. Further operations on sintering, surface modification of the carrier and the deposition of the catalyst are carried out as in example 1.
- the finished photocatalytic element contains:
- porous carrier in the form of a parallelepiped with dimensions of 400 ⁇ 60 ⁇ 5 mm, consisting of sintered glass balls with a modified surface;
- the samples obtained in the example (basic — X ° 3 and control — M ° 4) were tested in the photocatalytic oxidation of acetone vapor in air.
- the experiment was carried out in a sealed box with a volume of 300 l, where the reactor with the test sample was placed, an ultraviolet lamp similar to that used in example 1 and fan for air movement.
- the initial vapor concentration was created by evaporation of the corresponding amount of liquid acetone and was 100 ppm. After the UV lamp was turned on, gas concentration was used to measure the concentration of acetone and its final oxidation product (CO2) over time.
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Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12890443.0A EP2937139A4 (en) | 2012-12-20 | 2012-12-20 | PHOTO-CATALYTIC ELEMENT FOR THE PURIFICATION AND DECONTAMINATION OF AIR AND WATER, AND METHOD OF MANUFACTURING |
CN201280078229.6A CN105073247B (zh) | 2012-12-20 | 2012-12-20 | 用于空气和水的净化和消毒的光催化元件及其生产方法 |
KR1020157019545A KR101891512B1 (ko) | 2012-12-20 | 2012-12-20 | 공기 및 수 정화 소독용 광촉매성 요소 및 이의 제조 방법 |
EA201500592A EA027566B1 (ru) | 2012-12-20 | 2012-12-20 | Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления |
US14/768,119 US9925529B2 (en) | 2012-12-20 | 2012-12-20 | Photocatalytic element for purification and disinfection of air and water and method for the production thereof |
PCT/RU2012/001086 WO2014098641A1 (ru) | 2012-12-20 | 2012-12-20 | Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления |
RU2015123582A RU2647839C2 (ru) | 2012-12-20 | 2012-12-20 | Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/RU2012/001086 WO2014098641A1 (ru) | 2012-12-20 | 2012-12-20 | Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления |
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WO2014098641A1 true WO2014098641A1 (ru) | 2014-06-26 |
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PCT/RU2012/001086 WO2014098641A1 (ru) | 2012-12-20 | 2012-12-20 | Фотокаталитический элемент для очистки и обеззараживания воздуха и воды и способ его изготовления |
Country Status (6)
Country | Link |
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US (1) | US9925529B2 (ru) |
EP (1) | EP2937139A4 (ru) |
CN (1) | CN105073247B (ru) |
EA (1) | EA027566B1 (ru) |
RU (1) | RU2647839C2 (ru) |
WO (1) | WO2014098641A1 (ru) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US11819580B2 (en) | 2016-10-18 | 2023-11-21 | PurWorld Technologies LLC | Method of chemically disinfecting a vehicle |
KR20180124569A (ko) * | 2017-05-12 | 2018-11-21 | 서울바이오시스 주식회사 | 유체 처리 장치 |
CN107670656B (zh) * | 2017-09-25 | 2020-08-11 | 莱恩创科(北京)科技有限公司 | 一种光催化剂负载方法 |
KR20190090959A (ko) * | 2018-01-26 | 2019-08-05 | 서울바이오시스 주식회사 | 유체 처리 장치 |
CN110124720A (zh) * | 2019-05-21 | 2019-08-16 | 福州大学 | 一种在玻璃珠表面负载氮化碳光催化剂的方法 |
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WO1996037300A1 (en) * | 1995-05-26 | 1996-11-28 | University Technologies International Inc. | Photocatalyst compound and process for production thereof |
US5919726A (en) | 1998-01-30 | 1999-07-06 | Osaka Prefectural Government | Method for producing photocatalyst material |
RU2151632C1 (ru) | 1998-10-20 | 2000-06-27 | Балихин Игорь Львович | Фотокаталитический элемент и способ его получения |
US6491883B2 (en) | 1999-12-27 | 2002-12-10 | Nihon Parkerizing Co., Ltd. | Air-cleaning photocatalytic filter |
RU98134U1 (ru) * | 2010-04-15 | 2010-10-10 | Учреждение Российской Академии Наук Институт Проблем Химической Физики Ран (Ипхф Ран) | Бытовой фотокаталитический очиститель воздуха |
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US6440895B1 (en) * | 1998-07-27 | 2002-08-27 | Battelle Memorial Institute | Catalyst, method of making, and reactions using the catalyst |
US6135838A (en) * | 1998-10-07 | 2000-10-24 | Chung Shan Institute Of Science And Technology | Method of making UV lamp for air cleaning |
US6783740B2 (en) * | 2002-09-30 | 2004-08-31 | Northrop Grumman Corporation | Sintered glass bead filter with active microbial destruction |
CN100427183C (zh) * | 2006-04-26 | 2008-10-22 | 哈尔滨工业大学 | 填充式球载纳米TiO2气体净化组合装置 |
US20080268229A1 (en) * | 2006-08-09 | 2008-10-30 | Daeyeon Lee | Superhydrophilic coatings |
RU100189U1 (ru) * | 2010-03-04 | 2010-12-10 | Учреждение Российской академии наук Научный центр РАН в Черноголовке (НЦЧ РАН) | Фотокаталитический очиститель воздуха конвективного типа |
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2012
- 2012-12-20 RU RU2015123582A patent/RU2647839C2/ru not_active Application Discontinuation
- 2012-12-20 WO PCT/RU2012/001086 patent/WO2014098641A1/ru active Application Filing
- 2012-12-20 CN CN201280078229.6A patent/CN105073247B/zh active Active
- 2012-12-20 US US14/768,119 patent/US9925529B2/en active Active
- 2012-12-20 EA EA201500592A patent/EA027566B1/ru active IP Right Revival
- 2012-12-20 EP EP12890443.0A patent/EP2937139A4/en active Pending
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WO1996037300A1 (en) * | 1995-05-26 | 1996-11-28 | University Technologies International Inc. | Photocatalyst compound and process for production thereof |
US5919726A (en) | 1998-01-30 | 1999-07-06 | Osaka Prefectural Government | Method for producing photocatalyst material |
RU2151632C1 (ru) | 1998-10-20 | 2000-06-27 | Балихин Игорь Львович | Фотокаталитический элемент и способ его получения |
US6491883B2 (en) | 1999-12-27 | 2002-12-10 | Nihon Parkerizing Co., Ltd. | Air-cleaning photocatalytic filter |
US20120128539A1 (en) | 2008-11-05 | 2012-05-24 | Johnson Control Technology Company | Air purification system for vehicles |
RU98134U1 (ru) * | 2010-04-15 | 2010-10-10 | Учреждение Российской Академии Наук Институт Проблем Химической Физики Ран (Ипхф Ран) | Бытовой фотокаталитический очиститель воздуха |
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Title |
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See also references of EP2937139A4 |
Also Published As
Publication number | Publication date |
---|---|
CN105073247A (zh) | 2015-11-18 |
EA027566B1 (ru) | 2017-08-31 |
EA201500592A1 (ru) | 2015-09-30 |
EP2937139A1 (en) | 2015-10-28 |
EP2937139A4 (en) | 2016-12-14 |
US9925529B2 (en) | 2018-03-27 |
RU2647839C2 (ru) | 2018-03-21 |
RU2015123582A (ru) | 2017-01-23 |
CN105073247B (zh) | 2017-03-29 |
US20160008804A1 (en) | 2016-01-14 |
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