Preparation method for rare earth element-doped titanium dioxide nano material

A rare earth element and titanium dioxide technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, nanotechnology, etc., can solve the problems of inconspicuous photocatalytic activity, low ratio of rare earth atoms, low doping utilization rate of rare earth elements, etc. And the effect of simple process, wide adjustable range of parameters, and high performance of photocatalytic decomposition of organic pollutants
CN102992397AInactive Publication Date: 2013-03-27SHANGHAI NAT ENG RES CENT FORNANOTECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI NAT ENG RES CENT FORNANOTECH
Publication Date
2013-03-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method for a rare earth element-doped titanium dioxide nano material. The method comprises the steps of dissolving urea and rare earth element nitrate in absolute ethyl alcohol; adding liquid titanium source into the above solution to form a homogeneous solution; adding deionized water with stirring to form a transparent gel; performing hydro-thermal treatment on the above gel; washing, filtering and drying to obtain the rare earth element-doped titanium dioxide nano material. An object of doping titanium dioxide by using the rare earth element is realized through automatic regulation and control of pH value of a reaction system by slow decomposition of urea in the hydrothermal process. The preparation method is simple in process and flow, has wide parameter adjustable range, strong repeatability and low cost, and can be used for preparing different rare earth element-doped titanium dioxide nano materials or a plurality of the rare earth elements co-doped titanium dioxide nano material.
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Description

technical field

[0001] The invention relates to a preparation method of a titanium dioxide nano material, in particular to a preparation method of a rare earth element-doped titanium dioxide nano material, and belongs to the technical field of inorganic nano material preparation. Background technique

[0002] Due to its stable photochemical properties, high catalytic efficiency, strong oxidation ability, non-toxic and harmless, low price, simple process flow in practical applications, easy control of operating conditions, and no secondary pollution, titanium dioxide has been widely used as a photocatalyst. growing attention. Developed countries such as Europe and the United States have invested funds and research efforts in the research and development of titanium dioxide photocatalytic technology, and high-tech industries based on this are also taking shape.

[0003] As a semiconductor functional material, titanium dioxide's photocatalytic activity is mainly determined by ...

Claims

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