Surface plasmon photocatalyst with broad spectrum absorption and preparation method thereof

A surface plasmon and photocatalyst technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low photocatalytic efficiency and low utilization rate constraints, and achieve enhanced electric field Intensity, promotion of generation and separation, effect of enhancing photocatalytic performance
CN108355677AActive Publication Date: 2018-08-03DALIAN NATIONALITIES UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN NATIONALITIES UNIVERSITY
Publication Date
2018-08-03

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Abstract

The invention relates to a surface plasmon photocatalyst. According to the invention, precious metal Pt nanoparticles are grown at two ends of an Au nano rod, a CdS case layer is grown at a middle part of the Au nano rod, and the surface plasmon photocatalyst is constructed; a preparation method comprises the following steps: the Au nano rod is prepared through a seed growth method, silver nitrate, sodium hydroxide, ascorbic acid and a chloroplatinic acid solution are added in a cetyl trimethyl ammonium bromide aqueous solution of the Au nano rod for a reaction, centrifugation is carried out to obtain the products at two ends of the Au nano rod, the prepared Au nano rod solution with two ends grown with the Pt nanoparticles is added in a cadmium acetate and thioacetamide solution for the reaction, and centrifugation is carried out on a final product to obtain the surface plasmon photocatalyst with the two ends grown with Pt and the middle part grown with Cds of the Au nano rod. The photocatalysis material has excellent photocatalytic decomposition of water into hydrogen.
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Description

technical field

[0001] The invention relates to a high-efficiency photocatalyst and a preparation method. Background technique:

[0002] With the increasingly serious problems of environmental pollution and energy crisis, it has become a worldwide problem that plagues human existence, and people urgently need to find new recyclable green energy. Solar energy has the advantages of universality, harmlessness, large reserves, and long-term durability. The technology of using solar photocatalytic decomposition of water to produce hydrogen has attracted widespread attention. When hydrogen energy is burned, it can not only release huge energy, but also generate pollution-free water, which greatly reduces environmental pollution. At the same time, it can effectively convert solar energy into fuel energy. However, low photocatalytic efficiency and low utilization of visible and near-infrared light restrict the development of this technology. Therefore, improving photocatalytic eff...

Claims

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