Bismuth vanadate composite photo-catalyst co-modified by silver and phosphorous-modified graphite-phase carbon nitride nano-sheets, and preparation method and application of same

A graphite-phase carbon nitride and nanosheet technology, which is applied in the fields of physical/chemical process catalysts, chemical instruments and methods, and water treatment of special compounds, can solve the problems of ineffective photocatalytic processes, consumption of photogenerated electrons and holes, and high Problems such as electrons and holes can be achieved to improve the photocatalytic effect, increase the specific surface area, and improve the absorption capacity
CN106944118AActive Publication Date: 2017-07-14HUNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV
Publication Date
2017-07-14

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Abstract

The invention discloses a bismuth vanadate composite photo-catalyst co-modified by silver and phosphorous-modified graphite-phase carbon nitride nano-sheets, and a preparation method and an application of same. The composite photo-catalyst includes bismuth vanadate particle, which modifies the surface of phosphorous-modified graphite-phase carbon nitride nano-sheets to form PCNS / BiVO4, and elementary silver modifies the surface of the PCNS / BiVO4. The preparation method includes the steps of: preparing a suspension liquid, preparing the PCNS / BiVO4, and supporting the silver. The composite photo-catalyst has high photo-catalysis activity and good stability. The preparation method is simple in operation and processes and is low in cost. The composite photo-catalyst can be used for treating antibiotics wastewater and has simple application method, low cost, high removal rate on antibiotics, stable photo-catalysis performance, good repeatability, etc.
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Description

technical field

[0001] The invention belongs to the technical field of functional composite photocatalysts, and in particular relates to a bismuth vanadate composite photocatalyst co-modified with silver and phosphorous hybrid graphite phase carbon nitride nanosheets, and a preparation method and application thereof. Background technique

[0002] In recent years, human society has developed rapidly, and human living standards have also been greatly improved. However, the ensuing environmental problems are becoming more and more serious, and the traditional environmental restoration technology has been difficult to meet the needs of society. Therefore, seeking an energy-saving and efficient environmental treatment and restoration technology has received extensive attention and research at home and abroad. In the past ten years, photocatalytic technology has developed rapidly, and the scope of research has been continuously expanded. And thanks to the full development of nan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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