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Photocatalyst for efficiently degrading antibiotics and preparation method and application of photocatalyst

A technology for photocatalysts and antibiotics, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc.

Pending Publication Date: 2021-12-31
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rapid combination of photogenerated electron-hole pairs in most pure metal oxides and sulfides limits their practical applications in the field of photocatalysis.

Method used

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  • Photocatalyst for efficiently degrading antibiotics and preparation method and application of photocatalyst
  • Photocatalyst for efficiently degrading antibiotics and preparation method and application of photocatalyst
  • Photocatalyst for efficiently degrading antibiotics and preparation method and application of photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of nanocomposite CuO@Cu 2 O@Cu: Weigh 0.9983g copper acetate, 1.0000g sodium hydroxide, 0.4403g ascorbic acid, 1.0812g formamidine sulfinic acid and dissolve them in deionized water to obtain copper acetate solution, sodium hydroxide solution, ascorbic acid solution and formamidine sulfinic acid Sulfonic acid solution, then successively add sodium hydroxide solution and ascorbic acid solution into copper acetate solution to form precursor solution, take out the reaction mixture after 10 minutes of microwave irradiation at a power of 130W, then add formamidine sulfinic acid solution, and After mixing evenly, microwave reaction at 130W for 10 minutes again. After the reaction, cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol three times, and dry for more than 6 hours to obtain black nano Composite CuO@Cu 2 O@Cu;

[0033] (2) Preparation of five-component composite photocatalyst CuO@Cu ...

Embodiment 2

[0038] (1) Preparation of nanocomposite CuO@Cu 2 O@Cu: Weigh 0.9983g copper acetate, 0.8000g sodium hydroxide, 0.4403g ascorbic acid, 0.5406g formamidine sulfinic acid and dissolve them in deionized water to obtain copper acetate solution, sodium hydroxide solution, ascorbic acid solution and formamidine sulfinic acid Sulfonic acid solution, then successively add sodium hydroxide solution and ascorbic acid solution into copper acetate solution to form precursor solution, take out the reaction mixture after 8 minutes of microwave irradiation under the power of 130W, then add formamidine sulfinic acid solution, and After mixing evenly, microwave reaction at 130W for 8 minutes again. After the reaction, cool to room temperature, let stand overnight, filter the precipitate, wash 3 times with deionized water and absolute ethanol, and dry for more than 6 hours to obtain black nano-particles. Composite CuO@Cu 2 O@Cu;

[0039] (2) Preparation of five-component composite photocatalys...

Embodiment 3

[0043] (1) Preparation of nanocomposite CuO@Cu 2 O@Cu: Weigh 1.2484g copper sulfate, 0.4000g sodium hydroxide, 0.8806g ascorbic acid, 0.5406g formamidine sulfinic acid and dissolve them in deionized water to obtain copper acetate solution, sodium hydroxide solution, ascorbic acid solution and formamidine sulfinic acid Sulfonic acid solution, then successively add sodium hydroxide solution and ascorbic acid solution into copper acetate solution to form precursor solution, take out the reaction mixture after 10 minutes of microwave irradiation at a power of 130W, then add formamidine sulfinic acid solution, and After mixing evenly, microwave reaction at 130W for 10 minutes again. After the reaction, cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol three times, and dry for more than 6 hours to obtain black nano Composite CuO@Cu 2 O@Cu;

[0044] (2) Preparation of five-component composite photocatalyst CuO@Cu ...

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PUM

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Abstract

The invention discloses a photocatalyst for efficiently degrading antibiotics and a preparation method and application of the photocatalyst. The preparation method comprises the following steps: (1) uniformly dispersing nano zinc sulfide and a nano composite material CuO-coated Cu2O-coated Cu in a mass ratio of (0.25-4): 1 in deionized water to form a mixed solution; and (2) putting the mixed solution obtained in the step (1) into a microwave reactor to carry out microwave irradiation reaction, naturally cooling to room temperature after the reaction is finished, and then filtering, washing and drying to obtain the CuO-coated Cu2O-coated Cu-ZnO-CuS photocatalyst. The preparation method is simple, convenient to operate and good in repeatability, and the prepared photocatalyst can fully absorb visible light and ultraviolet light and efficiently and stably degrade antibiotics.

Description

technical field [0001] The invention belongs to the technical field of semiconductor photocatalyst materials, and in particular relates to a photocatalyst for efficiently degrading antibiotics, a preparation method and application thereof. Background technique [0002] Antibiotics are metabolites of microorganisms, which can inhibit or kill other microorganisms at low concentrations, so they can treat and prevent diseases caused by microbial infections such as bacteria, and are widely used in human medicine, aquaculture and animal husbandry. Although antibiotics have a low molecular weight, they have a short half-life and high biological activity, making them difficult to remove in traditional sewage treatment processes. They will enter surface water along with the effluent, and then pollute groundwater and even drinking water through recharge. Humans accumulate antibiotics through drinking water and food. When the concentration exceeds a certain level, the body's drug resis...

Claims

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Application Information

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IPC IPC(8): B01J27/04B01J37/34C02F1/30C01G3/02B82Y40/00C02F101/34C02F101/36C02F101/38
CPCB01J27/04B01J37/346C02F1/30C01G3/02B82Y40/00C02F2305/10C02F2101/34C02F2101/36C02F2101/38C02F2101/40C01P2004/82C01P2002/72C01P2004/03B01J35/39B01J35/23Y02W10/37
Inventor 朱雯莉杜娟杨巧玲易俊吴雪梅刘艳梅张中毅
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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