CN114700117A - Preparation method of novel visible light photocatalyst - Google Patents
Preparation method of novel visible light photocatalyst Download PDFInfo
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- CN114700117A CN114700117A CN202210313841.2A CN202210313841A CN114700117A CN 114700117 A CN114700117 A CN 114700117A CN 202210313841 A CN202210313841 A CN 202210313841A CN 114700117 A CN114700117 A CN 114700117A
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 32
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims abstract description 32
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910001868 water Inorganic materials 0.000 claims abstract description 25
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 18
- 239000011787 zinc oxide Substances 0.000 claims abstract description 18
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000005083 Zinc sulfide Substances 0.000 claims abstract description 16
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 16
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 16
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 16
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 16
- 239000010948 rhodium Substances 0.000 claims abstract description 16
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 16
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 16
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 16
- 229910052984 zinc sulfide Inorganic materials 0.000 claims abstract description 16
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910002370 SrTiO3 Inorganic materials 0.000 claims abstract description 15
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 15
- 239000007853 buffer solution Substances 0.000 claims abstract description 13
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000013078 crystal Substances 0.000 claims abstract description 10
- 239000008055 phosphate buffer solution Substances 0.000 claims abstract 8
- 238000002844 melting Methods 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000872 buffer Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention provides a preparation method of a novel visible light photocatalyst, which comprises the following raw materials: titanium dioxide, silicon dioxide, zirconium dioxide, tungsten trioxide, sodium sulfate, polyethylene glycol, zinc oxide, tin oxide, PBS buffer solution, zinc sulfide, SrTiO3 single crystal, platinum, rhodium, palladium and water, and comprises the following raw materials in parts by weight: 3-21 parts of titanium dioxide, 1-13 parts of silicon dioxide, 6-30 parts of zirconium dioxide, 8-24 parts of tungsten trioxide, 3-15 parts of sodium sulfate, 12-35 parts of polyethylene glycol, 3-19 parts of zinc oxide, 8-26 parts of ferric oxide, 10-36 parts of tin oxide, 4-20 parts of PBS (phosphate buffer solution) and 2-16 parts of zinc sulfide. The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Description
Technical Field
The invention relates to the technical field of photocatalysts, in particular to a preparation method of a novel visible light photocatalyst.
Background
The photocatalyst is also called as photocatalyst, which is a general name of a semiconductor material with a photocatalytic function represented by nano-scale titanium dioxide, wherein the representative photocatalyst material is titanium dioxide, which can generate substances with strong oxidizing property (such as hydroxyl free radicals, oxygen and the like) under the irradiation of light and can be used for decomposing organic compounds, partial inorganic compounds, bacteria, viruses and the like; meanwhile, various bacteria can be effectively killed, and toxin released by the bacteria or fungi can be decomposed and harmlessly treated.
The current common photocatalyst has low use stability, is easy to yellow and discolor after being used for a long time, has insufficient light absorption capacity, and has low wear resistance and corrosion resistance.
Disclosure of Invention
To solve the above problems in the prior art, the present invention provides a method for preparing a novel visible light photocatalyst,
the visible light photocatalyst has high stability, keeps the original color unchanged after long-term use, has strong absorption capacity to illumination, has high wear resistance and corrosion resistance, and improves the use effect of the photocatalyst.
The preparation method of the novel visible light photocatalyst is characterized by comprising the following raw materials: titanium dioxide, silicon dioxide, zirconium dioxide, tungsten trioxide, sodium sulfate, polyethylene glycol, zinc oxide, iron oxide, tin oxide, PBS buffer, zinc sulfide, SrTiO3 single crystal, platinum, rhodium, palladium, and water.
Preferably, 3-21 parts of titanium dioxide, 1-13 parts of silicon dioxide, 6-30 parts of zirconium dioxide, 8-24 parts of tungsten trioxide, 3-15 parts of sodium sulfate, 12-35 parts of polyethylene glycol, 3-19 parts of zinc oxide, 8-26 parts of ferric oxide, 10-36 parts of tin oxide, 4-20 parts of PBS buffer solution, 2-16 parts of zinc sulfide, 3-11 parts of SrTiO3 single crystal, 2-9 parts of platinum, 4-16 parts of rhodium, 6-15 parts of palladium and 12-18 parts of water.
Preferably, the coating comprises 17 parts of titanium dioxide, 20 parts of zirconium dioxide, 11 parts of sodium sulfate, 29 parts of polyethylene glycol, 10 parts of tungsten trioxide, 11 parts of zinc sulfide, 8 parts of silicon dioxide, 20 parts of tin oxide, 18 parts of ferric oxide, 5 parts of platinum, 6 parts of rhodium, 9 parts of palladium, 12 parts of zinc oxide, 10 parts of SrTiO3 single crystal, 14 parts of water and 13 parts of PBS buffer solution.
A preparation method of a novel visible light photocatalyst is characterized by comprising the following steps:
1) 17 parts of titanium dioxide, 20 parts of zirconium dioxide, 11 parts of sodium sulfate and 29 parts of polyethylene glycol are mixed and ground for 8-10 hours, and the temperature is controlled between 60-80 ℃ in the mixing and grinding process;
2) 10 parts of tungsten trioxide, 11 parts of zinc sulfide, 8 parts of silicon dioxide, 20 parts of tin oxide and 18 parts of ferric oxide are mixed and ground for 6-12 hours, the standard of the ground powder particles is lower than 4 nanometers in diameter, and the temperature condition is set within the range of 60-90 ℃ in the grinding process;
3) 5 parts of platinum, 6 parts of rhodium and 9 parts of palladium are mixed and dissolved, the hot melting temperature is controlled to be 300-700 ℃, and the hot melting time is 5-10 hours;
4) mixing and dissolving 12 parts of zinc oxide and 10 parts of SrTiO3 monocrystal, controlling the hot melting temperature to be 200-500 ℃, and carrying out hot melting for 7-12 hours;
5) 14 parts of water, wherein the used water is distilled water, and the water temperature is controlled to be 40-60 ℃;
6) 13 parts of PBS buffer solution, and storing at 20-30 ℃;
7) and fully and uniformly stirring and fusing all the raw materials for 10-20 hours, and keeping the temperature between 25-40 ℃.
The invention has the beneficial effects that:
the PBS buffer solution is helpful for adjusting the structural balance among all materials in the visible light photocatalyst;
the zinc oxide has the advantages that the zinc oxide can not turn black when meeting H2S gas, can keep the primary color unchanged when the photocatalyst absorbs the light heat energy, and has convergence and certain sterilization capability;
platinum, which is not oxidized in air, has strong absorption capacity for gases (especially hydrogen, oxygen and carbon monoxide);
rhodium has excellent corrosion resistance, strong high-temperature oxidation resistance, good catalytic activity, wear resistance and corrosion resistance;
the silicon dioxide can be used as a lubricant, is an excellent flow promoter, is mainly used as a lubricant, an anti-adhesion agent and a flow aid, can be used as the flow aid in photocatalyst liquid, improves the bulk density and is beneficial to improving the stability of the photocatalyst;
the iron oxide has the advantages of good heat resistance, weather resistance, ultraviolet absorption and the like, can be well dispersed in the carrier, has fine and uniform iron oxide particles, can not scatter light, has good light absorption effect, and improves the using effect of the photocatalyst.
Detailed Description
The invention is illustrated below by means of specific examples, without being restricted thereto.
The first embodiment is as follows:
17 parts of titanium dioxide, 20 parts of zirconium dioxide, 11 parts of sodium sulfate, 29 parts of polyethylene glycol, 10 parts of tungsten trioxide, 11 parts of zinc sulfide, 8 parts of silicon dioxide, 20 parts of tin oxide, 18 parts of ferric oxide, 5 parts of platinum, 6 parts of rhodium, 9 parts of palladium, 12 parts of zinc oxide, 10 parts of SrTiO3 single crystal, 14 parts of water and 13 parts of PBS buffer solution.
The preparation method comprises the following steps:
1) 17 parts of titanium dioxide, 20 parts of zirconium dioxide, 11 parts of sodium sulfate and 29 parts of polyethylene glycol are mixed and ground for 8-10 hours, and the temperature is controlled between 60-80 ℃ in the mixing and grinding process;
2) 10 parts of tungsten trioxide, 11 parts of zinc sulfide, 8 parts of silicon dioxide, 20 parts of tin oxide and 18 parts of ferric oxide are mixed and ground for 6-12 hours, the standard of the ground powder particles is lower than 4 nanometers in diameter, and the temperature condition is set within the range of 60-90 ℃ in the grinding process;
3) 5 parts of platinum, 6 parts of rhodium and 9 parts of palladium are mixed and dissolved, the hot melting temperature is controlled to be 300-700 ℃, and the hot melting time is 5-10 hours;
4) mixing and dissolving 12 parts of zinc oxide and 10 parts of SrTiO3 monocrystal, controlling the hot melting temperature to be 200-500 ℃, and carrying out hot melting for 7-12 hours;
5) 14 parts of water, wherein the used water is distilled water, and the water temperature is controlled to be 40-60 ℃;
6) 13 parts of PBS buffer solution, and storing at 20-30 ℃;
7) and fully and uniformly stirring and fusing all the raw materials for 10-20 hours, and keeping the temperature between 25-40 ℃.
Example two:
20 parts of titanium dioxide, 28 parts of zirconium dioxide, 14 parts of sodium sulfate, 17 parts of polyethylene glycol, 15 parts of tungsten trioxide, 8 parts of zinc sulfide, 6 parts of silicon dioxide, 28 parts of tin oxide, 14 parts of ferric oxide, 7 parts of platinum, 10 parts of rhodium, 12 parts of palladium, 15 parts of zinc oxide, 9 parts of SrTiO3 single crystal, 13 parts of water and 16 parts of PBS buffer solution.
The preparation method comprises the following steps:
1) 20 parts of titanium dioxide, 28 parts of zirconium dioxide, 14 parts of sodium sulfate and 17 parts of polyethylene glycol are mixed and ground together for 12-16 hours, and the temperature is controlled between 65-90 ℃ in the mixing and grinding process;
2) 15 parts of tungsten trioxide, 8 parts of zinc sulfide, 6 parts of silicon dioxide, 28 parts of tin oxide and 14 parts of ferric oxide are mixed and ground for 5-8 hours, the standard of the ground powder particles is less than 5 nanometers in diameter, and the temperature condition is set within the range of 72-120 ℃ in the grinding process;
3) 7 parts of platinum, 10 parts of rhodium and 12 parts of palladium are mixed and dissolved, the hot melting temperature is controlled to be 500-800 ℃, and the hot melting time is 7-10 hours;
4) 15 parts of zinc oxide and 9 parts of SrTiO3 monocrystal are mixed and dissolved, the hot melting temperature is controlled to be 400-700 ℃, and the hot melting time is 12-18 hours;
5) 13 parts of water, wherein the used water is distilled water, and the water temperature is controlled to be 50-80 ℃;
6) 16 parts of PBS buffer solution, and storing at 20-40 ℃;
7) and fully and uniformly stirring and fusing all the raw materials for 15-20 hours, and keeping the temperature between 20-30 ℃.
Example three:
17 parts of titanium dioxide, 16 parts of zirconium dioxide, 7 parts of sodium sulfate, 30 parts of polyethylene glycol, 24 parts of tungsten trioxide, 16 parts of zinc sulfide, 7 parts of silicon dioxide, 12 parts of tin oxide, 20 parts of ferric oxide, 3 parts of platinum, 5 parts of rhodium, 15 parts of palladium, 19 parts of zinc oxide, 11 parts of SrTiO3 single crystal, 17 parts of water and 8 parts of PBS buffer solution.
The preparation method comprises the following steps:
1) 17 parts of titanium dioxide, 16 parts of zirconium dioxide, 7 parts of sodium sulfate and 30 parts of polyethylene glycol are mixed and ground for 12-16 hours, and the temperature is controlled between 65-90 ℃ in the mixing and grinding process;
2) 24 parts of tungsten trioxide, 16 parts of zinc sulfide, 7 parts of silicon dioxide, 12 parts of tin oxide and 20 parts of ferric oxide are mixed and ground for 5-8 hours, the standard of the ground powder particles is less than 5 nanometers in diameter, and the temperature condition is set within the range of 72-120 ℃ in the grinding process;
3) 3 parts of platinum, 5 parts of rhodium and 15 parts of palladium are mixed and dissolved, the hot melting temperature is controlled to be 500-800 ℃, and the hot melting time is 7-10 hours;
4) 19 parts of zinc oxide and 11 parts of SrTiO3 monocrystal are mixed and dissolved, the hot melting temperature is controlled to be 400-700 ℃, and the hot melting time is 12-18 hours;
5) 17 parts of water, wherein the used water is distilled water, and the water temperature is controlled to be 50-80 ℃;
6) 8 parts of PBS buffer solution, and storing at 20-40 ℃;
7) and fully and uniformly stirring and fusing all the raw materials for 15-20 hours, and keeping the temperature between 20-30 ℃.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The preparation method of the novel visible light photocatalyst is characterized by comprising the following raw materials: titanium dioxide, silicon dioxide, zirconium dioxide, tungsten trioxide, sodium sulfate, polyethylene glycol, zinc oxide, iron oxide, tin oxide, PBS buffer, zinc sulfide, SrTiO3 single crystal, platinum, rhodium, palladium, and water.
2. The preparation method of the novel visible light photocatalyst according to claim 1, characterized by comprising the following raw materials in parts by weight: 3-21 parts of titanium dioxide, 1-13 parts of silicon dioxide, 6-30 parts of zirconium dioxide, 8-24 parts of tungsten trioxide, 3-15 parts of sodium sulfate, 12-35 parts of polyethylene glycol, 3-19 parts of zinc oxide, 8-26 parts of ferric oxide, 10-36 parts of tin oxide, 4-20 parts of PBS (phosphate buffer solution), 2-16 parts of zinc sulfide, 3-11 parts of SrTiO3 single crystal, 2-9 parts of platinum, 4-16 parts of rhodium, 6-15 parts of palladium and 12-18 parts of water.
3. The preparation method of the novel visible light photocatalyst according to claim 2, which is characterized by comprising the following raw materials in parts by weight: 17 parts of titanium dioxide, 20 parts of zirconium dioxide, 11 parts of sodium sulfate, 29 parts of polyethylene glycol, 10 parts of tungsten trioxide, 11 parts of zinc sulfide, 8 parts of silicon dioxide, 20 parts of tin oxide, 18 parts of ferric oxide, 5 parts of platinum, 6 parts of rhodium, 9 parts of palladium, 12 parts of zinc oxide, 10 parts of SrTiO3 single crystal, 14 parts of water and 13 parts of PBS buffer solution.
4. A preparation method of a novel visible light photocatalyst is characterized by comprising the following steps:
1) 17 parts of titanium dioxide, 20 parts of zirconium dioxide, 11 parts of sodium sulfate and 29 parts of polyethylene glycol are mixed and ground for 8-10 hours, and the temperature is controlled between 60-80 ℃ in the mixing and grinding process;
2) 10 parts of tungsten trioxide, 11 parts of zinc sulfide, 8 parts of silicon dioxide, 20 parts of tin oxide and 18 parts of ferric oxide are mixed and ground for 6-12 hours, the standard of the ground powder particles is lower than 4 nanometers in diameter, and the temperature condition is set within the range of 60-90 ℃ in the grinding process;
3) 5 parts of platinum, 6 parts of rhodium and 9 parts of palladium are mixed and dissolved, the hot melting temperature is controlled to be 300-700 ℃, and the hot melting time is 5-10 hours;
4) mixing and dissolving 12 parts of zinc oxide and 10 parts of SrTiO3 monocrystal, controlling the hot melting temperature to be 200-500 ℃, and carrying out hot melting for 7-12 hours;
5) 14 parts of water, wherein the used water is distilled water, and the water temperature is controlled to be 40-60 ℃;
6) 13 parts of PBS buffer solution, and storing at 20-30 ℃;
7) and fully and uniformly stirring and fusing all the raw materials for 10-20 hours, and keeping the temperature between 25-40 ℃.
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| CN110756227A (en) * | 2019-09-09 | 2020-02-07 | 湖州纳琦环保科技有限公司 | Multifunctional composite photocatalyst |
| CN111790368A (en) * | 2020-07-08 | 2020-10-20 | 安徽徽光电子科技有限公司 | Preparation process of photocatalyst self-cleaning material |
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