A kind of preparation method of black titanium dioxide nano film

A black titanium dioxide, nano-film technology, applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc. , unfavorable chemical reactions and other problems, to achieve the effect of expanding the light response range, application environment friendly, and promoting catalytic activity
CN106622247BActive Publication Date: 2019-03-26青岛西交蓝海科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
青岛西交蓝海科技有限公司
Publication Date
2019-03-26

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Abstract

The invention belongs to the technical field of nano film preparation and relates to a method for preparing black titanium dioxide nano films. The process includes three steps: preparation of nano particles, preparation of nano films and thickness control of nano films. Titanium tetraisopropoxide and nickel nitrate are used. Preparing black titanium dioxide nanoparticles, using electrophoretic deposition method to deposit black titanium dioxide nanoparticles onto a stainless steel substrate to prepare a black titanium dioxide nanofilm, coupling nickel ion doping with hydrogen atmosphere heat treatment modification, the doping of nickel ions can form on the surface of titanium dioxide Efficient active sites promote the separation of photogenerated electrons and holes, and promote the improvement of the catalytic activity of titanium dioxide. Heat treatment in a hydrogen atmosphere can expand the photoresponse range of titanium dioxide and turn white titanium dioxide into black titanium dioxide. The process is simple, the production cost is low, and the deposition is The speed is fast, the film formation quality is high, the application environment is friendly, and it meets the needs of commercialization.
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Description

Technical field:

[0001] The invention belongs to the technical field of nano-film preparation, and relates to a method for preparing a black titanium dioxide nano-film. A black titanium dioxide nano-film doped with nickel is prepared by an electrophoretic deposition method with simple operation device, low cost, high film-forming quality and fast deposition rate. Background technique:

[0002] Titanium dioxide (TiO 2 ) is a white solid or powdery amphoteric oxide with a relative molecular mass of 79.83. As a semiconductor material, titanium dioxide has the characteristics of low price, simple preparation and good chemical stability. It is usually used as a catalyst for light paint pigments to degrade pollutants It is not only an environmentally safe cleaning agent, but also can save energy and protect environmental resources; at present, titanium dioxide photocatalyst has been widely used in the fields of air purification and water treatment, and the basic principle of appli...

Claims

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