CN110898832A - Preparation method of photocatalytic active carbon particles for purifying air - Google Patents
Preparation method of photocatalytic active carbon particles for purifying air Download PDFInfo
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- CN110898832A CN110898832A CN201911329299.4A CN201911329299A CN110898832A CN 110898832 A CN110898832 A CN 110898832A CN 201911329299 A CN201911329299 A CN 201911329299A CN 110898832 A CN110898832 A CN 110898832A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000002245 particle Substances 0.000 title claims abstract description 48
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000013078 crystal Substances 0.000 claims description 3
- 238000004887 air purification Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 42
- 239000004408 titanium dioxide Substances 0.000 description 8
- 238000005303 weighing Methods 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 3
- 238000013032 photocatalytic reaction Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
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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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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Abstract
The invention discloses a preparation method of photocatalytic active carbon particles for purifying air, which comprises the following components in parts by weight: 30-50 parts of coal activated carbon powder, 5-10 parts of nano titanium dioxide powder, 5-10 parts of glass fiber, 20-40 parts of 450-mesh 550-mesh talcum powder and 10-20 parts of silica sol with the solid content of 20%; mixing the above components, stirring, granulating, molding, drying at 30-100 deg.C, soaking in 0.01-0.1% chloroauric acid water solution for 10-120 min, taking out, and drying at 25-60 deg.C to obtain photocatalytic active carbon granule for purifying air; the method has the advantages of simple operation, easily obtained raw materials, low manufacturing cost and wide application prospect in the field of air purification.
Description
Technical Field
The invention relates to the technical field of air purification materials, in particular to a preparation method of photocatalytic active carbon particles for purifying air.
Background
At present, various activated carbon products for purifying air exist in the market, but the number of the photocatalytic activated carbon particle products is relatively small, part of the photocatalytic activated carbon particle products are prepared by mainly taking titanium-based liquid or titanium dioxide sol liquid as a precursor solution and carrying out the working procedures of soaking, drying, high-temperature treatment and the like, and the photocatalytic loading method mainly comprises a powder sintering method, a dip-coating method, a sol-gel method, a chemical vapor deposition method and the like. Although the TiO2 prepared by the methods has small and uniform particle size and high photocatalytic activity, the method has complex process, great technical difficulty and high cost, especially has large energy consumption through high-temperature crystallization sintering at the temperature of over 600 ℃, the improper sintering and crystallization treatment easily causes poor binding firmness of the titanium dioxide film and the activated carbon to fall off or fall off, titanium dioxide crystals of photocatalytic active carbon particles prepared by the processes are all attached to the surface of the activated carbon and rarely enter an activated carbon adsorption inner layer, and the equipment cost and the process conditions cause great popularization and application difficulty.
The photocatalyst or activated carbon particle catalyst prepared by mixing titanium dioxide powder and activated carbon powder is also subjected to a high-temperature treatment step. For example, CN108722388A discloses a photocatalyst for air purification. The catalyst is prepared by mixing zinc oxide, activated carbon and titanium dioxide powder and then firing at a high temperature. Meanwhile, the activated carbon particles in the market have the defects of poor water resistance, low mechanical strength, low light utilization rate and the like. When the active carbon particles with poor water resistance are exposed to water or a humid environment for a long time, the surface of the active carbon can crack and pulverize to influence the photocatalytic film on the outer surface layer of the active carbon.
The photocatalytic degradation of organic matters requires oxygen molecules (O) in the air2) Or water molecules (H)2O) and generate free radicals with strong oxidizing properties such as oxygen radicals (. O)2) And hydroxyl radicals (. OH). The free radicals can sterilize or inhibit bacteria, decompose organic pollutants, and finally decompose and mineralize the organic matters into nontoxic water (H)2O) and carbon dioxide (CO)2) Thereby having strong sterilization, deodorization and preventionThe mould and the air purifying function, and the sufficient oxygen molecules or water molecules can greatly improve the air purifying efficiency of decomposing organic matters. Therefore, the adsorption performance of the activated carbon particles to water molecules influences the efficiency of photocatalytic degradation of organic pollutants.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art: provides a preparation method of photocatalytic active carbon particles for purifying air, which has high purification efficiency and good water resistance and water molecule adsorption performance.
The technical solution of the invention is as follows: a preparation method of photocatalytic activated carbon particles for purifying air comprises the following components in parts by weight: 30-50 parts of coal activated carbon powder, 5-10 parts of nano titanium dioxide powder, 5-10 parts of glass fiber, 20-40 parts of 450-mesh 550-mesh talcum powder and 10-20 parts of silica sol with the solid content of 20%.
Mixing the above components, stirring, granulating, molding, drying at 30-100 deg.C, soaking in 0.01-0.1% chloroauric acid water solution for 10-120 min, taking out, and drying at 25-60 deg.C to obtain photocatalytic active carbon granule for purifying air.
The particle size of the granulation molding is 2-10 mm.
The nano titanium dioxide powder is in an anatase crystal form, and the particle size is not more than 100 nm.
The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The invention has the beneficial effects that: glass fiber and talcum powder are introduced into the preparation of photocatalytic active carbon particles, silica gel is used for curing and forming, the photocatalytic active carbon particles with better water resistance and strength can be prepared at low temperature, the light absorption rate is improved through the light refraction and transmission effects of the glass fiber, the space photocatalytic reaction of a photocatalytic adsorption layer on the inner surface of the active carbon is promoted, the photocatalytic reaction is facilitated, the photocatalytic efficiency is improved, the active carbon particles are soaked in chloroauric acid aqueous solution, nanogold can be deposited on the surfaces of the active carbon and titanium dioxide to play the roles of promoting organic matter adsorption, resisting bacteria, sterilizing, decomposing organic matters through photocatalysis and the like, and the effect of the method is embodied in two aspects: the nano gold is deposited in the active carbon particles to promote the adsorption of organic molecules and the antibacterial and bactericidal effects; the nano gold is deposited on the surface of the titanium dioxide, so that the photocatalytic efficiency can be improved. The preparation method disclosed by the invention is simple to operate, the raw materials are easy to obtain, the preparation cost is low, and the preparation method has a wide application prospect in the field of air purification.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples.
Example one
Weighing the following components in parts by weight: 50 parts of coal activated carbon powder, 10 parts of nano titanium dioxide powder, 10 parts of glass fiber, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated, molded to have the granularity of 2-10mm, dried at 100 ℃, then immersed into a chloroauric acid aqueous solution with the mass percentage concentration of 0.1 percent for 120 minutes, taken out and dried at 60 ℃ to prepare the photocatalytic active carbon particles for purifying air.
Example two
Weighing the following components in parts by weight: 30 parts of coal activated carbon powder, 5 parts of nano titanium dioxide powder, 10 parts of glass fiber, 30 parts of 450-mesh talcum powder and 20 parts of silica sol with the solid content of 20%. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated, molded to have the granularity of 2-10mm, dried at 90 ℃, then immersed into a chloroauric acid aqueous solution with the mass percentage concentration of 0.01 percent for 120 minutes, taken out and dried at 60 ℃ to prepare the photocatalytic active carbon particles for purifying air.
EXAMPLE III
Weighing the following components in parts by weight: 50 parts of coal activated carbon powder, 5 parts of nano titanium dioxide powder, 10 parts of glass fiber, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated, molded to have the granularity of 2-10mm, dried at 100 ℃, then immersed into a chloroauric acid aqueous solution with the mass percentage concentration of 0.1 percent for 120 minutes, taken out and dried at 60 ℃ to prepare the photocatalytic active carbon particles for purifying air.
Example four
Weighing the following components in parts by weight: 40 parts of coal activated carbon powder, 10 parts of nano titanium dioxide powder, 10 parts of glass fiber, 20 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated, molded to have the granularity of 2-10mm, dried at 100 ℃, then immersed into a chloroauric acid aqueous solution with the mass percentage concentration of 0.1 percent for 120 minutes, taken out and dried at 60 ℃ to prepare the photocatalytic active carbon particles for purifying air.
EXAMPLE five
Weighing the following components in parts by weight: 45 parts of coal activated carbon powder, 10 parts of nano titanium dioxide powder, 5 parts of glass fiber, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated, molded to have the granularity of 2-10mm, dried at 100 ℃, then immersed into chloroauric acid aqueous solution with the mass percentage concentration of 0.05 percent for 120 minutes, taken out and dried at 60 ℃ to prepare the photocatalytic active carbon particles for purifying air.
Comparative example 1
Weighing the following components in parts by weight: 50 parts of coal activated carbon powder, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
Mixing the above components, stirring, granulating, molding to particle size of 2-10mm, and oven drying at 100 deg.C to obtain active carbon granule.
Comparative example No. two
Weighing the following components in parts by weight: 50 parts of coal activated carbon powder, 10 parts of nano titanium dioxide powder, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20%. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated and molded to have the granularity of 2-10mm, and dried at 100 ℃ to prepare the photocatalytic active carbon particles.
Comparative example No. three
Weighing the following components in parts by weight: 50 parts of coal activated carbon powder, 10 parts of nano titanium dioxide powder, 10 parts of glass fiber, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent. The granularity range of the coal activated carbon powder is 1-150um, and the average grain diameter is 40 um.
The components are mixed and stirred evenly, granulated and molded to have the granularity of 2-10mm, and dried at 100 ℃ to prepare the photocatalytic active carbon particles.
Evaluation of catalyst Performance
Filling the photocatalytic active carbon particles prepared in comparative examples 1-3 and example 1 into a transparent tube with the inner diameter of 5cm and the length of 20cm, opening two ends of the transparent tube, limiting the particles through a filter screen, wherein the particle size of the active carbon particles is 2-5mm, continuously introducing formaldehyde gas with certain concentration from one end of the transparent tube, testing the change of the concentration of formaldehyde at the outlet of the other end, and testing the concentration C of the formaldehyde at the inletinWith the outlet formaldehyde concentration CoutWhen the formaldehyde concentration at the outlet tends to be stable, the concentration C of the formaldehyde at the outlet is measuredoutAnd calculating the formaldehyde removal rate.
The formula for calculating the formaldehyde removal rate is as follows:
x=（Cin-Cout）/Cin× 100%
in the formula, x is the removal rate of formaldehyde; cinAnd CoutThe formaldehyde concentrations at the inlet and outlet, respectively.
From the above table, it can be seen that: the activated carbon particles without photocatalyst nano titanium dioxide can not carry out photocatalytic degradation on formaldehyde after the activated carbon particles are adsorbed and saturated with formaldehyde, and the removal rate of the formaldehyde is basically changed very little. The introduction of the glass fiber into the activated carbon particles can obviously improve the formaldehyde removal rate, and the introduction of the glass fiber improves the light utilization rate and is beneficial to photocatalytic reaction. In example 1, after the photocatalytic activated carbon particles are treated with chloroauric acid water, the nanogold is deposited on the surfaces of titanium dioxide and activated carbon particles, so that the photocatalytic formaldehyde removal efficiency can be promoted, and the photocatalytic composite activated carbon particles have the function of decomposing harmful gases.
The above are merely characteristic embodiments of the present invention, and do not limit the scope of the present invention in any way. All technical solutions formed by equivalent exchanges or equivalent substitutions fall within the protection scope of the present invention.
Claims (5)
1. The preparation method of the photocatalytic active carbon particles for purifying air is characterized by comprising the following components in parts by weight: 30-50 parts of coal activated carbon powder, 5-10 parts of nano titanium dioxide powder, 5-10 parts of glass fiber, 20-40 parts of 450-mesh 550-mesh talcum powder and 10-20 parts of silica sol with the solid content of 20%;
mixing the above components, stirring, granulating, molding, drying at 30-100 deg.C, soaking in 0.01-0.1% chloroauric acid water solution for 10-120 min, taking out, and drying at 25-60 deg.C to obtain photocatalytic active carbon granule for purifying air.
2. The preparation method of photocatalytic active carbon particles for purifying air as claimed in claim 1, wherein the following components are weighed in parts by weight: 50 parts of coal activated carbon powder, 10 parts of nano titanium dioxide powder, 10 parts of glass fiber, 40 parts of 500-mesh talcum powder and 20 parts of silica sol with the solid content of 20 percent;
the components are mixed and stirred evenly, granulated, formed, dried at 100 ℃, then immersed into chloroauric acid water solution with the mass percentage concentration of 0.1 percent for 120 minutes, taken out and dried at 60 ℃ to prepare the photocatalytic active carbon particles for purifying air.
3. The method for preparing photocatalytic activated carbon particles for purifying air according to claim 1, wherein the particle size of the granulated and formed particles is 2 to 10 mm.
4. The method of claim 1, wherein the coal-based activated carbon powder has a particle size of 1-150um and an average particle size of 40 um.
5. The method for preparing photocatalytic activated carbon particles for purifying air according to claim 1, wherein the nano titanium dioxide powder is in an anatase crystal form and has a particle size of not more than 100 nm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112616833A (en) * | 2020-11-16 | 2021-04-09 | 浙江省轻工业品质量检验研究院 | Preparation method and application of glass fiber loaded carbon-doped titanium dioxide |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927452A (en) * | 2006-09-19 | 2007-03-14 | 东南大学 | Ternary composite octahedrite type titanium dioxide photocatalyst and preparation process thereof |
| CN104014376A (en) * | 2014-06-13 | 2014-09-03 | 北京工业大学 | Preparation method for honeycomb-shaped low-temperature denitration catalytic material taking TiO2-Mg2Al4SiO18 as carrier |
| CN104399457A (en) * | 2014-12-26 | 2015-03-11 | 中国科学院广州地球化学研究所 | Au/TiO2/CFP (carbon fiber paper) ternary composite nano photocatalyst as well as preparation method and application thereof |
| CN104888750A (en) * | 2015-04-24 | 2015-09-09 | 北京理工大学 | Activated carbon fiber loading titanium dioxide composite photocatalytic material and preparation method and application thereof |
| CN107670664A (en) * | 2017-10-31 | 2018-02-09 | 云南健牛生物科技有限公司 | Titanic oxide composite photochemical catalyst system prepares and its application |
| CN107824228A (en) * | 2017-11-02 | 2018-03-23 | 东北师范大学 | Improve the solution method of plasma processing and device of titanium dioxide (AB) photocatalyst activity |
| CN108722388A (en) * | 2017-04-25 | 2018-11-02 | 佛山市洁灏环保科技有限公司 | A kind of photochemical catalyst of air purification |
-
2019
- 2019-12-20 CN CN201911329299.4A patent/CN110898832A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927452A (en) * | 2006-09-19 | 2007-03-14 | 东南大学 | Ternary composite octahedrite type titanium dioxide photocatalyst and preparation process thereof |
| CN104014376A (en) * | 2014-06-13 | 2014-09-03 | 北京工业大学 | Preparation method for honeycomb-shaped low-temperature denitration catalytic material taking TiO2-Mg2Al4SiO18 as carrier |
| CN104399457A (en) * | 2014-12-26 | 2015-03-11 | 中国科学院广州地球化学研究所 | Au/TiO2/CFP (carbon fiber paper) ternary composite nano photocatalyst as well as preparation method and application thereof |
| CN104888750A (en) * | 2015-04-24 | 2015-09-09 | 北京理工大学 | Activated carbon fiber loading titanium dioxide composite photocatalytic material and preparation method and application thereof |
| CN108722388A (en) * | 2017-04-25 | 2018-11-02 | 佛山市洁灏环保科技有限公司 | A kind of photochemical catalyst of air purification |
| CN107670664A (en) * | 2017-10-31 | 2018-02-09 | 云南健牛生物科技有限公司 | Titanic oxide composite photochemical catalyst system prepares and its application |
| CN107824228A (en) * | 2017-11-02 | 2018-03-23 | 东北师范大学 | Improve the solution method of plasma processing and device of titanium dioxide (AB) photocatalyst activity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112616833A (en) * | 2020-11-16 | 2021-04-09 | 浙江省轻工业品质量检验研究院 | Preparation method and application of glass fiber loaded carbon-doped titanium dioxide |
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