A photocatalyst cu 3 vs 4 preparation method

Abstract

The invention discloses a photocatalyst Cu 3 VS 4 The preparation method includes the following process: copper chloride dihydrate (CuCl 2 ·2H 2 O), ammonium metavanadate (NH 4 VO 3 ) and thiourea (CH 4 N 2 S) Mix and grind evenly, transfer the powder to a hydrothermal reaction kettle for high-temperature reaction; after the reaction is naturally cooled, wash the product in the kettle with distilled water, stir and let stand, separate the solid, and dry it at about 60°C to prepare A kind of photocatalyst Cu 3 VS 4 , the method is simple to operate, energy-saving, and the product has catalytic performance.

Description

technical field [0001] The invention belongs to the technical field of catalysis and environmental protection, in particular to a photocatalyst Cu 3 vs. 4 method of preparation. Background technique [0002] At present, the biggest problem facing mankind is how to effectively deal with the increasing water pollution and pollutant degradation, especially in the degradation of toxic pollutants. Semiconductor photocatalytic advanced oxidation technology is one of the most promising methods. When photons with energy greater than or equal to the semiconductor band gap irradiate on the surface of the photocatalyst, electrons and holes will be generated, and the photocatalytic reaction can be realized by using the redox ability of electrons and holes. The use of photocatalysts in pollutant treatment has become increasingly widespread, and the preparation of efficient and stable photocatalysts has become the focus of research. For sulfide Cu 3 vs. 4 , the existing preparation m...

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Problems solved by technology

This method raw material and equipment requirement are more expensive, and operation process is more complicated; After directly reacting the elements at high temperature, then react with 48mol.% NH at 300°C 4 The flux reaction of Cl and 52mol.% LiCl is mixed. This method requires higher temperature, and the reaction raw materials are more expensive, which is inconvenient for large-scale synthesis and application; in 2018, Kudo Akihiko et al. Copper sulfide (CuS) and vanadium sulfide (V 2 S 3 ) to prepare Cu 3 vs. 4 A large amount of synthesis of this method requires expensive funds; in 2018, Chen et al. (Materials Letters 211(2018) 179–182) reported a rapid hot-melt synthesis method. The reaction raw materials of this method include vanadium(III) acetylacetonate (870.7mg, 2.5mmol), copper (II) acetylacetonate (1570.6mg, 6mmol), oleylamine, sulfur (256.5mg, 8mmol), etc., the reaction environment is required to be carried out in argon protection, the environmental conditions of this method are harsh, and the raw material of oleylamine is expensive , The steps are cumbersome, and it is not convenient for large-dose synthesis

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