Preparation method of carbon cloth loaded zinc oxide/silver phosphate composite photocatalytic material

Abstract

The invention discloses a preparation method of a carbon cloth loaded zinc oxide / silver phosphate composite photocatalytic material, which comprises the following steps: S1, cleaning carbon cloth with acetone, absolute ethyl alcohol and deionized water respectively, soaking the cleaned carbon cloth in nitric acid, and then drying; step S2, dissolving anhydrous zinc acetate in absolute ethyl alcohol, stirring to obtain a first mixed solution, slowly dripping the first mixed solution on the carbon cloth treated in the step S1, and then calcining; s3, dissolving zinc nitrate hexahydrate and hexamethylenetetramine in a mixed solution of ammonia water and deionized water to obtain a second mixed solution; s4, soaking the treated carbon cloth in a second mixed solution, transferring into a reaction kettle, carrying out hydrothermal reaction, self-cooling, taking out, cleaning and drying; and S5, soaking the carbon cloth obtained in the step S4 in a silver nitrate solution, taking out the soaked carbon cloth, soaking the carbon cloth in a diammonium hydrogen phosphate solution, and washing and drying the carbon cloth after multiple times of repeated soaking.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a method for preparing a carbon cloth-loaded zinc oxide / silver phosphate composite photocatalytic material. Background technique [0002] Only about 13% of the energy consumed in the world is renewable energy, and the remaining 87% is fossil energy. In the future, one of the great challenges facing mankind is how to gradually shift energy supply from most or all fossil fuels to sustainable energy sources. In addition, with the rapid development of the world's industrial process, environmental pollution has gradually become one of the important problems to be solved. In recent years, photocatalytic technology based on semiconductor materials has provided a way for us to effectively utilize solar energy and control environmental pollution. Semiconductor photocatalytic materials can not only use solar energy to treat toxic and harmful substances in air or water, i...

AI Technical Summary

Problems solved by technology

Most of the currently studied photocatalysts exist in the powder state, which is difficult to recycle and reuse. In practical applications, the cycle performance and stability are poor, which hinders their large-scale application in the field of photocatalysis.

For example, the Chinese invention patent "A Molybdenum Disulfide / Silver Phosphate Composite Visible Light Photocatalytic Material and Its Preparation Method" with the application number CN201310462452.7, the preparation method is composed of a graphite-like material with a mass ratio of 0.1:100 to 3:100 It is compounded by molybdenum disulfide and silver phosphate. Specifically, it uses graphene-like molybdenum disulfide to modify the silver phosphate photocatalyst to obtain a graphene-like molybdenum disulfide / silver phosphate composite material. Novel, powdered catalysts still suffer from recycling difficulties

[0004] Another example is the Chinese invention patent "A nano-sheet silver phosphate and its preparation method and its application as a visible light catalyst" with the application number CN201810960073.3. The preparation method of the invention is to add the ammonium molybdate solution dropwise to the silver nitrate solution and stir homogeneously, to obtain a mixed solution; drop disodium hydrogen phosphate solution in the mixed solution, stir and react to obtain nano-sheet silver phosphate crystals, although the silver phosphate prepared by this method has better visible light photocatalytic activity, but the single Silver phosphate photocatalytic materials are prone to photocorrosion and have low stability

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