Method for preparing white needle-shaped six-edge mono-crystalline nano-zinc oxide

A technology of single crystal nanometer and zinc oxide, applied in chemical instruments and methods, zinc oxide/zinc hydroxide, single crystal growth, etc., can solve problems such as difficult matching of coexisting substances, irregular product morphology, low product purity, etc. Achieve the effects of high output rate, pure color and high product purity
CN101514480BInactive Publication Date: 2011-03-30TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2011-03-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing white needle-shaped six-edge mono-crystalline nano-zinc oxide. Zinc chloride and sodium hydroxide are taken as taw materials; sodium hydroxide is used as an alkaline regulator of the pH value and deionized water as solvent, cleaning agent, washing agent and vacuum drying support. The method comprises the following steps: firstly, preparing the watersolutions of zinc chloride and sodium hydroxide; mixing the water solutions; carrying out a chemical reaction in the mixed solution under the conditions of water-bath heating, stirring and water-circulation condensation; finally preparing the powdery product, that is, the white needle-shaped six-edge mono-crystalline nano-zinc oxide, through centrifugal separation, washing and vacuum drying afterthe grain growth and separation in the reaction. The method has the advantages of short preparation period, low heating temperature and low material consumption; and the product has the advantages that the morphology and the color are pure, the product is in a regular shape with the diameter being 80 to 100nm and the maximum length being 2,500nm; the preparation cost is low; the yield is as high as 65%; and the purity of the product (zinc oxide) is 99.5%.
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Description

technical field

[0001] The invention relates to a preparation method of white needle-shaped hexagonal single crystal nano-scale zinc oxide, which belongs to the technical field of preparation method and application of inorganic single crystal chemical substance zinc oxide. Background technique

[0002] Zinc oxide is an inorganic semiconductor material with important application value. The band gap at room temperature is 3.37 eV, and the bound exciton energy is 60 meV. It is easy to be excited at room temperature. However, due to its small particle size and specific surface area Large, with surface effect, quantum size effect and Kubo effect, exhibiting many special properties, such as non-toxicity, non-migration, fluorescence, piezoelectricity, ability to absorb and scatter ultraviolet rays, and thus are widely used in photodiodes, photodetectors Recently, zinc oxide nanostructures have been found to have ultraviolet laser, piezoelectric properties and photocatalytic propert...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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