Preparation method of low-temperature plasma modified Mo-TiO2 photocatalyst

Abstract

The invention discloses a preparation method of a low-temperature plasma modified Mo-TiO2 photocatalyst. The preparation method includes: mixing a titanium source and an inhibitor with an organic solvent and adding glucose and a template agent to obtain a first solution; adding ammonium molybdate and deionized water into the organic solvent to obtain a second solution; dropwise adding the second solution to the first solution, stirring to obtain TiO2 sol, and performing ageing to obtain gel; drying and grinding the gel to obtain Mo-TiO2 after calcination; performing low-temperature plasma treatment. The preparation method has the advantages that the low-temperature plasma modified Mo-TiO2 photocatalyst is high in specific surface area and porosity, energy gap is narrower as compared with Mo-TiO2 and TiO2, good visible-light absorption is achieved, absorption capacity on the photocatalyst is effectively expanded, and volatile organic compounds can be excellently catalyzed and degraded under visible light.

Description

technical field [0001] The invention belongs to the field of photocatalysts, in particular to a low-temperature plasma modified Mo-TiO 2 Preparation method of photocatalyst. Background technique [0002] In recent years, with the rapid development of the world's industrial level, my country's industrial development has also entered a high-speed period. However, due to insufficient understanding of industrial development, the early industry emphasized rapid development, and did not take into account other factors, such as environmental pollution in the later period. Wait. As a result, our current environment is getting worse and worse. Therefore, the protection of the environment is extremely important at present. In recent years, smog has appeared in major cities, and it has shown a growing trend, revealing that the atmospheric environment is getting worse and worse. This is a serious warning from nature to us. Among them, the main cause of air pollution is volatile organ...

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Problems solved by technology

Preparation of ion-doped TiO by traditional sol-gel method 2 In the process of catalyst, when ions are introduced, impurities will also be introduced to attach to the surface and gaps of the crystal lattice of the catalyst, thereby generating a certain amount of defects and becoming recombination centers, resulting in TiO 2 Photocatalytic materials show some shortcomings in catalytic reactions, such as low catalytic activity, deactivation, poor stability, etc.

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