High-concentration molybdenum-doped tungsten trioxide photocatalytic nano material and preparation method thereof

Abstract

The invention belongs to the technical field of material preparation, and discloses a high-concentration molybdenum-doped tungsten trioxide photocatalytic nano material and a preparation method thereof. The high-concentration molybdenum-doped tungsten trioxide photocatalytic nano material is prepared from, by mass, 8-12 parts of tungsten trioxide, 6-7 parts of sodium molybdate, 2-4 parts of graphite, 23-30 parts of deionized water, 8-11 parts of hydrochloric acid, 4-5 parts of nitric acid and 5-8 parts of ethylene glycol. The prepared high-concentration molybdenum-doped tungsten trioxide is a photocatalytic nano material, the electron hole recombination rate in an original tungsten trioxide material can be reduced, the absorption width of the high-concentration molybdenum-doped tungsten trioxide material to a solar spectrum in a photocatalytic reaction can be increased, the utilization rate of the photocatalytic reaction to sunlight is increased, and the efficiency of photocatalytic degradation of organic matters is improved. Meanwhile, the photocatalytic performance of the catalyst is improved by changing the structure of the catalyst, visible light can be effectively utilized by molybdenum-loaded mesoporous tungsten trioxide, and the photoresponse range of tungsten trioxide is expanded.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a high-concentration molybdenum-doped tungsten trioxide photocatalytic nanometer material and a preparation method thereof. Background technique [0002] At present, as a new type of wastewater treatment technology, photocatalysis has shown broad application prospects in the advanced treatment of organic wastewater. It has attracted the attention of researchers at home and abroad for its remarkable advantages of completely mineralizing organic pollutants. The photocatalytic process has the unique advantages of almost no selectivity to the degradation of organic matter, complete mineralization of organic pollutants, no secondary pollution, simple equipment, low investment, and good effect. Photocatalytic oxidation technology is a semiconductor catalyst that generates OH free radicals with strong oxidation ability through the action of sunlight or ultraviol...

AI Technical Summary

Problems solved by technology

[0004] Through the above analysis, the existing problems and defects of the prior art are as follows: the current tungsten trioxide photocatalyst has poor effect on improving the photoresponse range and photocatalytic performance

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