Method for preparing zinc oxide material

A technology of zinc oxide and raw materials, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of complex process control, high temperature reaction, poor particle uniformity, etc., and achieve good doping uniformity, low reaction temperature and low cost. Effect
CN101214992AInactive Publication Date: 2008-07-09WUHAN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN INSTITUTE OF TECHNOLOGY
Publication Date
2008-07-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a process for preparing zinc oxide material. The preparing process for zinc oxide material is characterized in that the preparing process includes the following steps: 1) selection of material: selecting material containing zinc oxide, urea and water as the mole ratio of zinc oxide and urea is 0.001-0.9 and that of zinc oxide and water is 0.01-1000 as reserve material, 2) blending the material containing zinc oxide, urea and water, grinding the mixture uniformly and obtaining slurry, 3) heating to form colloid: heating the slurry obtained from the step 2) at the temperature between 121-340 DEG C to obtain transparent colloid, 4) employing one of the following two methods to obtain zinc oxide material: a ) heat decompositing filter residue by hydrolysis to obtain zinc oxide material, b ) heat decomposition: heating the colliod obtained from step 3) to the temperature between 420-800 DEG C to obtain zinc oxide material. The method has the advantages of low cost, low reaction temperature and capability of catalyzing urea to heat decomposite to obtain cyanamide. The obtained product is characterized that graininess is small, adulteration is uniform and the product is larger than the specific surface area.
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Description

technical field

[0001] The invention relates to a preparation method of zinc oxide material. Background technique

[0002] Due to its small grain size and large specific surface area, nano-ZnO has unique surface effects, volume effects, long-lasting effects, and excellent photoactivity, electrical activity, sintering activity, and catalytic activity. It can be used to manufacture gas sensors, phosphors, and ultraviolet shielding. materials, varistors, image recording materials, piezoelectric materials, varistors, high-efficiency catalysts, magnetic materials, ceramic materials, cosmetics and medical materials. It also has application prospects in rubber industry, dye ink and other fields. Therefore, the preparation of nano-zinc oxide has become one of the research hotspots in the field of material preparation.

[0003] At present, there are many methods for preparing nano zinc oxide powder, such as sol-gel method (Sol-Gel), homogeneous precipitation method, hydrothermal me...

Claims

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