Nanometer-sized Zinc Oxide Prepared by Using Urea as Precipitating Agent

Journal of Inorganic Materials

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Nanometer-sized Zinc Oxide Prepared by Using Urea as Precipitating Agent

LIU Chao-Fend; HU Xing-Fang; ZU Yong ⁺

Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China; ⁺Dept. of Chemical engineering Northwest University Xi an 710069 China

Received:1998-05-21 Revised:1998-06-23 Published:1999-06-20 Online:1999-06-20

Abstract

Abstract: Nanometer-sized ZnO particles were prepared by using a homogeneous precipitation method, urea and zinc nitrate as the starting materials.
Microstructure and morphology of nanometer-sized ZnO were investigated by means of TG-DTA, IR absorption spectra, X-ray diffractometry
, TEM and Laser particle size analyzer. The results indicated that well-crystallized nano-ZnO was obtained with annealing temperature at 450℃. Narrow-
sized, finely dispersed nano-ZnO with a size of 15～80nm was available by controlling reactant conditions. The effects of supersaturation on particle
sizes and formation mechanism of nano-ZnO were also discussed.

Key words: nanometer-sized ZnO, homogeneous precipitation method, nucleation and growth, super saturation degree

CLC Number:

TF123

LIU Chao-Fend,HU Xing-Fang,ZU Yong. Nanometer-sized Zinc Oxide Prepared by Using Urea as Precipitating Agent[J]. Journal of Inorganic Materials.

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Nanometer-sized Zinc Oxide Prepared by Using Urea as Precipitating Agent

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