Method for large-scale preparing ZnO nano bar array

Abstract

The invention is a method of large-scale preparing ZnO nano stick array, comprising the steps of: taking and dissolving a certain amount of zinc acetate in a certain amount of water in the weight ratio of 2 to (6-12) to prepare solution A; taking and addig a certain amount of alcohol in proper citric acid to prepare solution B; uniformly solutions A and B and placing their mixture in a magnetic stirrer, heating in water bath of 60DEG C-90DEG C for 8h-10h; drying in a drying box of 75 deg.C-85 deg.C for 5-10 h, and obtaining white precursor; placing the white precursor in a Muffle furnace and sintering at 400DEG C-800DEG C for 1.5-2.5 h, and making it. And it has uniform diameter distribution, large length-dimater ratio, high purity and excellent performance.

Description

technical field [0001] The invention relates to a method for preparing a ZnO nanorod array. Background technique [0002] The solution growth method has good chemoselectivity and controllability, so it is very promising to prepare highly crystalline ZnO nanorods with narrow diameter distribution and controllability. The Univ.of New Mexico research team in the United States prepared ZnO nanorods and other nanostructures by organic solution growth method, and published them in Nature Materials. They used controllable seed crystal growth and selective absorption of citrate anions on the ZnO basal surface as structurants to synthesize ZnO nanostructures on low-temperature solution substrates. [0003] ZnO nanorod array is one of the research hotspots of nanomaterials nowadays. At present, the preparation methods of ZnO nanorod arrays mainly include physical thermal evaporation method, gas phase thermochemical synthesis method, molecular beam epitaxy method, metal and organic c...

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Problems solved by technology

The preparation conditions are quite harsh, which is not conducive to large-scale industrial production. Although the template method can obtain highly oriented ZnO nanorod arrays at a relatively low temperature, there is a problem of template removal; although the chemical reaction method is quick, it requires complex methods. Reaction and many organic substances, especially the solvent is organic and toxic, which pollutes the environment very much and does not meet the development direction of modern industry that does not meet environmental protection requirements, so it is not suitable for large-scale industrial production applications

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