CN115445595A - Preparation method of titanium dioxide nanosheet photocatalytic material, product and application thereof - Google Patents
Preparation method of titanium dioxide nanosheet photocatalytic material, product and application thereof Download PDFInfo
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 80
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 50
- 239000002135 nanosheet Substances 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 44
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004202 carbamide Substances 0.000 claims abstract description 19
- 239000007853 buffer solution Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- CTENFNNZBMHDDG-UHFFFAOYSA-N Dopamine hydrochloride Chemical compound Cl.NCCC1=CC=C(O)C(O)=C1 CTENFNNZBMHDDG-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229960001149 dopamine hydrochloride Drugs 0.000 claims abstract description 14
- 150000003608 titanium Chemical class 0.000 claims abstract description 13
- 239000012046 mixed solvent Substances 0.000 claims abstract description 12
- 239000004098 Tetracycline Substances 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 229960002180 tetracycline Drugs 0.000 claims abstract description 11
- 229930101283 tetracycline Natural products 0.000 claims abstract description 11
- 235000019364 tetracycline Nutrition 0.000 claims abstract description 11
- 150000003522 tetracyclines Chemical class 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 18
- 229910021641 deionized water Inorganic materials 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012300 argon atmosphere Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 8
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 4
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- -1 titanium salt tetrabutyl titanate Chemical class 0.000 claims description 4
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 4
- 239000007983 Tris buffer Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000007146 photocatalysis Methods 0.000 description 5
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- 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
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
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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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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
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Abstract
The invention provides a preparation method of a titanium dioxide nanosheet photocatalytic material, a product and an application thereof, wherein organic titanium salt and urea are dissolved in a mixed solvent containing ethylene glycol and are placed in a reaction kettle, the reaction is cooled to room temperature, and titanium dioxide nanoclusters are obtained by washing and drying; dissolving the titanium dioxide nano-cluster in a buffer solution, and performing ultrasonic dispersion; adding dopamine hydrochloride and stirring; calcining to obtain the titanium dioxide nanosheet. According to the invention, the titanium dioxide nanosheet is regulated and controlled by combining two solvents, namely ethylene glycol and dopamine hydrochloride, so that the prepared titanium dioxide nanosheet photocatalytic material has a large specific surface area, and the photocatalytic performance of the titanium dioxide is greatly improved. In the dark, the adsorption of the titanium dioxide nanosheets to tetracycline is balanced, and then the degradation of the tetracycline is 99% after 60 min under the ultraviolet light catalysis condition. The preparation process is relatively simple and easy to operate.
Description
Technical Field
The invention belongs to the field of photocatalytic materials and preparation and application thereof, and particularly relates to a preparation method of a titanium dioxide nanosheet photocatalytic material as well as a product and application thereof.
Background
With the development of chemical industry, environmental pollution is becoming more serious. The discharge of printing and dyeing wastewater is one of the important causes of water pollution. Every year, a large amount of commercial dyes are discharged, and the dyes are stable in chemical property and cause great damage to the ecological environment. By utilizing the characteristic that the semiconductor oxide material can be activated under the irradiation of sunlight, organic matters can be effectively oxidized and degraded into carbon dioxide, water and other small molecules. Compared with the traditional purification method, the semiconductor photocatalysis technology has the advantages of mild reaction conditions, no secondary pollution, simple operation, obvious degradation effect and the like. Titanium dioxide is one of the most interesting photocatalysts, which is low-toxic, low-cost, durable, superhydrophilic and has excellent photochemical stability.
Titanium dioxide (TiO) 2 ) The TiO is attracted attention as a photocatalytic material under the condition of illumination 2 Can oxidize organic pollutants in water, and makes the photocatalysis technology have great breakthrough in the field of treating organic pollutants in water phase and gas phase. Since then, photocatalytic degradation of organic pollutants has become one of the hot areas. To improve TiO 2 As the catalytic efficiency of the photocatalyst, various means have been used to modify the material.
The invention provides a preparation method of a titanium dioxide nanosheet photocatalytic material, the titanium dioxide nanosheet is regulated and controlled through the combination of two solvents, namely ethylene glycol and dopamine hydrochloride, the prepared titanium dioxide nanosheet photocatalytic material has a large specific surface area, and the photocatalytic performance of titanium dioxide is greatly improved. The preparation process is relatively simple and easy to operate.
Disclosure of Invention
In order to overcome the defect that the existing titanium dioxide photocatalysis performance is not high enough, the invention aims to provide a preparation method of a titanium dioxide nanosheet photocatalysis material.
Yet another object of the present invention is to: provides a titanium dioxide nanosheet photocatalytic material product obtained by the method.
Yet another object of the present invention is: provides an application of the product.
The purpose of the invention is realized by the following scheme: a preparation method of a titanium dioxide nanosheet photocatalytic material is characterized by comprising the following specific steps:
1) Dissolving organic titanium salt and urea in a mixed solvent of glycol-deionized water, wherein the molar weight ratio of the titanium salt to the urea is 1 to 3 to 5, and the volume ratio of the glycol to the deionized water is 1 to 3;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 100-120 ℃ for 8-12 h, cooling to room temperature, washing with deionized water and an organic solvent for 3-5 times, and drying in a vacuum oven at 100-120 ℃ overnight to obtain a titanium dioxide nanocluster;
3) Dissolving the titanium dioxide nano-cluster in a buffer solution, and performing ultrasonic dispersion; then adding 40 to 60 mg of dopamine hydrochloride, and magnetically stirring for 18 to 24 hours;
4) Calcining the mixture in an argon atmosphere containing 3 to 5 percent of hydrogen volume for 2 to 3 hours at the temperature of 300 to 450 ℃ to obtain the titanium dioxide nanosheet.
Preferably, in the step 1), the titanium salt is one or a combination of tetrabutyl titanate, isopropyl titanate or ethyl titanate.
Preferably, in the step 2), the organic solvent is one or a combination of acetone or ethanol.
Preferably, in the step 3), the buffer solution is tris buffer solution or borax buffer solution.
The invention provides a titanium dioxide nanosheet photocatalytic material prepared according to any one of the methods described above.
The invention provides an application of a titanium dioxide nanosheet material in tetracycline wastewater treatment in the field of photocatalysis.
Has the advantages that:
the invention provides a preparation method of a titanium dioxide nanosheet photocatalytic material, the titanium dioxide nanosheet is regulated and controlled through the combination of two solvents, namely ethylene glycol and dopamine hydrochloride, the prepared titanium dioxide nanosheet photocatalytic material has a large specific surface area, and the photocatalytic performance of titanium dioxide is greatly improved. The preparation process is relatively simple and easy to operate. In the dark, the adsorption of the titanium dioxide nanosheets to tetracycline is balanced, and then the degradation of the tetracycline is 99% after 60 min under the ultraviolet light catalysis condition.
Drawings
FIG. 1 is an SEM image of a titanium dioxide nanosheet photocatalytic material of example 1;
fig. 2 is a diagram of the ultraviolet photocatalytic degradation of the titanium dioxide nanosheet photocatalytic material of example 2.
In the dark, the adsorption of the titanium dioxide nanosheets to tetracycline is balanced, and then the degradation of the tetracycline is 99% after 60 min under the ultraviolet light catalysis condition.
Detailed Description
The present invention is described in detail by the following specific examples, but the scope of the present invention is not limited to these examples.
Example 1
A titanium dioxide nanosheet photocatalytic material is prepared by dissolving organic titanium salt and urea in a mixed solvent containing ethylene glycol and placing the mixed solvent in a reaction kettle for reaction to obtain a titanium dioxide nanocluster; dissolving the titanium dioxide nano-cluster in a buffer solution for dispersion, adding dopamine hydrochloride, and stirring; calcining to obtain the titanium dioxide nanosheet photocatalytic material, and preparing the titanium dioxide nanosheet photocatalytic material according to the following steps:
1) Dissolving organic titanium salt tetrabutyl titanate and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar weight ratio of tetrabutyl titanate to urea is 1;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 100 ℃ for 12 h, cooling to room temperature, washing for 3 times by using deionized water and organic solvent acetone, and drying in a vacuum oven at 100 ℃ overnight to obtain titanium dioxide nanoclusters;
3) Dissolving the titanium dioxide nanoclusters in buffer solution tris (hydroxymethyl) aminomethane, and performing ultrasonic dispersion; adding 40mg of dopamine hydrochloride, and magnetically stirring for 18 hours to obtain a product;
4) Calcining the product for 2 hours at 450 ℃ in an argon atmosphere containing 5% of hydrogen volume to obtain the titanium dioxide nanosheet photocatalytic material.
FIG. 1 is an SEM image of the titanium dioxide nanosheet photocatalytic material of this example. It can be seen from the figure that titanium dioxide has a plate-like morphology.
Example 2
A titanium dioxide nanosheet photocatalytic material, which is similar to the step of example 1, and is prepared by the following steps:
1) Dissolving isopropyl titanate and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar ratio of the organic titanium salt to the urea is 1;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 120 ℃ for 8h, cooling to room temperature, washing with deionized water and organic solvent ethanol for 5 times, and drying in a vacuum oven at 120 ℃ overnight to obtain titanium dioxide nanoclusters;
3) Dissolving the titanium dioxide nanoclusters in a borax buffer solution, and performing ultrasonic dispersion; adding 50mg of dopamine hydrochloride, and magnetically stirring for 24 hours to obtain a product;
4) Calcining the product in an argon atmosphere containing 5% of hydrogen volume at 400 ℃ for 3h to obtain the titanium dioxide nanosheet photocatalytic material.
Fig. 2 is a diagram of ultraviolet photocatalytic degradation of a titanium dioxide nanosheet photocatalytic material in this embodiment, wherein in the dark, adsorption of the titanium dioxide nanosheet to tetracycline is balanced, and then degradation of tetracycline is 99% after 60 min under the ultraviolet photocatalytic condition.
Example 3
A titanium dioxide nanosheet photocatalytic material, which is similar to the step of example 1, and is prepared by the following steps:
1) Dissolving organic titanium salt ethyl titanate and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar weight ratio of the organic titanium salt to the urea is 1;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 120 ℃ for 10h, cooling to room temperature, washing with deionized water and ethanol for 5 times, and drying in a vacuum oven at 120 ℃ overnight to obtain titanium dioxide nanoclusters;
3) Dissolving the titanium dioxide nanoclusters in buffer solution tris (hydroxymethyl) aminomethane, and performing ultrasonic dispersion; adding 60 mg of dopamine hydrochloride, and magnetically stirring for 20 hours to obtain a product;
4) Calcining the product for 3 hours at the temperature of 420 ℃ in an argon atmosphere containing 3% of hydrogen volume to obtain the titanium dioxide nanosheet photocatalytic material.
Tests prove that the titanium dioxide nanosheet photocatalytic material of the embodiment degrades tetracycline by more than 99%.
Claims (9)
1. A preparation method of a titanium dioxide nanosheet photocatalytic material is characterized in that organic titanium salt and urea are dissolved in a mixed solvent containing ethylene glycol and placed in a reaction kettle for reaction to obtain a titanium dioxide nanocluster; dissolving the titanium dioxide nanoclusters in a buffer solution for dispersion, adding dopamine hydrochloride, and stirring; calcining to obtain the titanium dioxide nanosheet photocatalytic material, comprising the following steps:
1) Dissolving organic titanium salt and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar ratio of the organic titanium salt to the urea is (1) - (3), and the volume ratio of the ethylene glycol to the deionized water is (1) - (3);
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 100-120 ℃ for 8-12 h, cooling to room temperature, washing with deionized water and an organic solvent for 3-5 times, and drying in a vacuum oven at 100-120 ℃ overnight to obtain a titanium dioxide nano cluster;
3) Dissolving the titanium dioxide nanoclusters in a buffer solution, and performing ultrasonic dispersion; adding 40-60 mg of dopamine hydrochloride, and magnetically stirring for 18-24 h to obtain a product;
4) And calcining the product in an argon atmosphere containing 3 to 5 percent of hydrogen volume at the temperature of 300 to 450 ℃ for 2 to 3 hours to obtain the titanium dioxide nanosheet photocatalytic material.
2. The method for preparing titanium dioxide nanosheet photocatalytic material as recited in claim 1, wherein the titanium salt is one or a combination of tetrabutyl titanate, isopropyl titanate, or ethyl titanate.
3. The method of claim 1, wherein the organic solvent is one or a combination of acetone and ethanol.
4. The method for preparing the titanium dioxide nanosheet photocatalytic material of claim 1, wherein the buffer solution is tris buffer solution or borax buffer solution.
5. The method for preparing the titanium dioxide nanosheet photocatalytic material as recited in any one of claims 1 to 4, comprising the steps of:
1) Dissolving organic titanium salt tetrabutyl titanate and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar weight ratio of tetrabutyl titanate to urea is 1;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 100 ℃ for 12 h, cooling to room temperature, washing for 3 times by using deionized water and organic solvent acetone, and drying in a vacuum oven at 100 ℃ overnight to obtain titanium dioxide nanoclusters;
3) Dissolving the titanium dioxide nano-cluster in buffer solution tris (hydroxymethyl) aminomethane, and performing ultrasonic dispersion; adding 40mg of dopamine hydrochloride, and magnetically stirring for 18 hours to obtain a product;
4) Calcining the product for 2 hours at 450 ℃ in an argon atmosphere containing 5% of hydrogen volume to obtain the titanium dioxide nanosheet photocatalytic material.
6. The method for preparing the titanium dioxide nanosheet photocatalytic material as recited in any one of claims 1 to 4, comprising the steps of:
1) Dissolving isopropyl titanate and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar weight ratio of the organic titanium salt to the urea is 1;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 120 ℃ for 8h, cooling to room temperature, washing with deionized water and organic solvent ethanol for 5 times, and drying in a vacuum oven at 120 ℃ overnight to obtain titanium dioxide nanoclusters;
3) Dissolving the titanium dioxide nanoclusters in a borax buffer solution, and performing ultrasonic dispersion; adding 50mg of dopamine hydrochloride, and magnetically stirring for 24 hours to obtain a product;
4) Calcining the product for 3 hours at 400 ℃ in an argon atmosphere containing 5% of hydrogen volume to obtain the titanium dioxide nanosheet photocatalytic material.
7. The method for preparing the titanium dioxide nanosheet photocatalytic material as recited in any one of claims 1 to 4, comprising the steps of:
1) Dissolving organic titanium salt ethyl titanate and urea in a mixed solvent of ethylene glycol and deionized water, wherein the molar weight ratio of the organic titanium salt to the urea is 1;
2) Placing the mixed solution A in a 100 mL reaction kettle, reacting at 120 ℃ for 10h, cooling to room temperature, washing with deionized water and ethanol for 5 times, and drying in a vacuum oven at 120 ℃ overnight to obtain titanium dioxide nanoclusters;
3) Dissolving the titanium dioxide nanoclusters in buffer solution tris (hydroxymethyl) aminomethane, and performing ultrasonic dispersion; adding 60 mg of dopamine hydrochloride, and magnetically stirring for 20 hours to obtain a product;
4) Calcining the product in an argon atmosphere containing 3% of hydrogen volume at the temperature of 420 ℃ for 3 hours to obtain the titanium dioxide nanosheet photocatalytic material.
8. A titanium dioxide nanosheet photocatalytic material characterized as having been prepared according to the method of any one of claims 1 to 7.
9. The application of the titanium dioxide nanosheet photocatalytic material of claim 8 in photocatalytic tetracycline wastewater treatment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116272985A (en) * | 2023-03-09 | 2023-06-23 | 上海腾灵建设集团有限公司 | Preparation method, product and application of silver molybdate@titanium@network titanium dioxide |
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| CN116272985B (en) * | 2023-03-09 | 2023-11-14 | 上海腾灵建设集团有限公司 | Preparation method, product and application of silver molybdate@titanium@network titanium dioxide |
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