Preparation method of zinc selenide nanometer photocatalyst and application of zinc selenide nanometer photocatalyst

Abstract

The invention discloses a preparation method of a zinc selenide nanometer photocatalyst and application of zinc selenide nanometer photocatalyst. A solvothermal method is adopted for preparing the ZnSe nanometer photocatalyst in a high pressure reactor, and the ZnSe nanometer photocatalyst is obtained through the control of the volume ratio of solvent to deionized water and the filling degree of the high pressure reactor, and then Rhodamin B solution containing the ZnSe nanometer photocatalyst is irradiated by an ultraviolet lamp to be subjected to photocatalytic degradation. The method has the advantages that the operation is simple, the energy consumption is low and the environment pollution is low; besides, the used raw materials and the solvent for preparation are low in cost and have low toxicity, and large-scale production can be realized in the preparation process; the photocatalysis technology is a novel environment-friendly technology, semiconductor photocatalysis has attractive application prospect in the aspects of degradation of organic dyestuffs, wastewater treatment and the like, and great social and economic benefits can be generated.

Description

technical field [0001] The invention relates to a preparation method of a zinc selenide nanometer photocatalyst, and also relates to the application of the zinc selenide nanometer photocatalyst for photocatalytic degradation of rhodamine B solution. Background technique [0002] In recent years, the pollution caused by human production and life has far exceeded the self-degradation ability of nature, so it has become an urgent problem to find ways to degrade pollutants with high efficiency and low energy consumption. Photocatalytic treatment technology is a new technology with easy operation, low energy consumption, no secondary pollution and broad application prospects. However, its practical application is still limited by the low photocatalytic efficiency. Therefore, finding high-efficiency photocatalysts has become an important research topic. [0003] ZnSe is an important direct band gap II-VI semiconductor light-emitting material, with a band gap of 2.67 eV and an exc...

AI Technical Summary

Problems solved by technology

However, at the same time, problems such as narrow spectral absorption range of nano-zinc oxide, difficulty in recycling, and difficulty in repeated reuse limit its wide application.

[0006] Although semiconductor photocatalytic technology has made some remarkable progress in its development for decades, it has not yet reached industrialization, industrialization, and commercial application.

Although a large number of researchers are committed to the field of photocatalysis, the research on the application of ZnSe semiconductor materials in the field of photocatalysis is not perfect.

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