Bismuthic acid barium-sodium catalyst with visible light respond and production thereof

A technology of photocatalyst and barium bismuthate, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve the effect of simple preparation method, good application prospect, and promotion of practical application
CN1817453AInactive Publication Date: 2006-08-16SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2006-08-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A barium sodium bismuthate as photocatalyst response to visual light for catalytic degradation to toxic and harmful chemical substances is prepared from sodium bismuthate and Ba salt through adding sodium bismuthate to the solution of Ba salt, stirring, hydrothermal reaction, washing and baking. It has high hotocatalytic activity for UV, visual light and natural light.
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Description

technical field

[0001] The invention relates to a photocatalyst and its preparation method, in particular to a visible light responsive barium bismuth sodium photocatalyst and its preparation method. The prepared photocatalyst is a composite metal composed of sodium, barium, bismuth and oxygen elements Oxide semiconductor powder with photocatalytic activity under visible light. The invention belongs to the field of inorganic nanometer photocatalytic materials. Background technique

[0002] The sun is a huge, long-term, and endless energy source. Various forms of energy on the earth come directly or indirectly from solar energy. However, there are many problems in the development and utilization of solar energy due to the low energy density of solar energy and the characteristics of regional and seasonal changes. The current environmental problems and energy crisis have become the two bottlenecks restricting human development, and photocatalytic technology is expected to be...

Claims

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