Fluorine-doped ammonium tungsten bronze photocatalyst with full-spectrum response, and preparation method thereof

A photocatalyst and fluorine-doped technology, which is applied in the field of environmental purification and green energy utilization, can solve the problems of low near-infrared photocatalytic efficiency and narrow photocatalyst spectral utilization range, and achieve excellent ultraviolet-visible-near-infrared light Photocatalytic performance, the effect of improving photocatalytic performance and broadening the spectrum utilization range
CN110813348AInactive Publication Date: 2020-02-21SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2020-02-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a fluorine-doped ammonium tungsten bronze photocatalyst with full-spectrum response, and a preparation method thereof. The method comprises: adding tungsten chloride and ammonium acetate into an n-propanol solution, and ultrasonically dissolving to obtain a solution A; adding a hydrofluoric acid solution into the solution A to obtain a solution B, and reacting at 180-220 DEG C for 12-72 h; and naturally cooling the reaction product, washing, and drying to obtain the fluorine-doped ammonium tungsten bronze photocatalyst with full-spectrum response. According to the invention, the rhodamine B degradation rate of the catalyst is greater than 35% after ultraviolet light irradiation for 180 min, the rhodamine B degradation rate of the catalyst is greater than 90% after visible light irradiation for 120 min, the rhodamine B degradation rate of the catalyst is greater than 80% after near-infrared light irradiation for 180 min, and the photocatalyst still has high degradation rate and stable activity after a photocatalysis experiment is cycled five times, and can be stably used for a long time; and the method is simple to operate, wide in raw material source, low incost and high in pollutant degradation rate.
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Description

technical field

[0001] The invention belongs to the fields of environmental purification and green energy utilization, and relates to a full-spectrum corresponding fluorine-doped ammonium tungsten bronze photocatalyst and a preparation method thereof. Background technique

[0002] With the rapid development of human society in the 21st century, great progress has been made in both science and technology and humanities. However, the problems of contemporary resource depletion and ecological environment deterioration have become increasingly prominent, posing severe challenges to human beings. Sustainable development has become the path that contemporary society must choose, and the two major challenges facing sustainable development are energy issues and environmental issues. A photocatalyst is a chemical substance that can change the rate of a chemical reaction under the radiation of light, but does not itself participate in the reaction. Photocatalysts can not only make fu...

Claims

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