Preparation method of quaternary visible light catalysis nano composite material

A nano-composite material, visible light technology, applied in the field of photocatalytic materials, can solve the problem of low photocatalytic efficiency, and achieve the effect of improving the reaction rate, accelerating crystal crystallization, and prolonging the life.
CN111167479AActive Publication Date: 2020-05-19SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Publication Date
2020-05-19

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Abstract

The invention discloses a preparation method of a quaternary visible light catalysis nano composite material. The preparation method specifically comprises the following steps: (1) uniformly dispersing copper oxide and zinc sulfide in a mass ratio of 1: (1-4) in deionized water to form a mixed solution; and (2) putting the mixed solution obtained in the step (1) into a microwave reactor, carryingout microwave irradiation reaction, cooling to room temperature, and carrying out filtering, washing and drying to obtain the CuO / CuS / ZnO / ZnS quaternary visible light catalysis nano composite material. The obtained CuO / CuS / ZnO / ZnS quaternary visible light catalysis nano composite material has relatively high photocatalytic efficiency under visible light. The preparation method is simple in process, simple and convenient to operate, good in repeatability, clean in process and environment-friendly, and no surfactant or organic solvent is used as a template.
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Description

technical field

[0001] The invention belongs to the technical field of photocatalytic materials, and in particular relates to a preparation method of a quaternary visible light catalytic nanocomposite material. Background technique

[0002] As one of the earliest semiconductors used for photocatalysis, zinc sulfide (ZnS) can quickly generate carriers under photoexcitation, and the negative reduction potential of photogenerated electrons is high, and the conduction band position in aqueous solution is also high. It shows absolute advantages in degrading water pollutants. However, the biggest defect of ZnS is the rapid combination of photogenerated electrons and holes, which shortens the lifetime of carriers and reduces the photocatalytic activity of ZnS. In addition, due to the wide energy gap of ZnS itself, the catalytic reaction can only be driven under ultraviolet light, which only accounts for about 5% of the total energy of sunlight. This will inevitably make the photo...

Claims

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