Preparation and characterization of nano-TiO2 powder

被引:219
作者
Li, BR [1 ]
Wang, XH [1 ]
Yan, MY [1 ]
Li, LT [1 ]
机构
[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
关键词
concentration; pH value; calcination time; calcination temperature; nano-TiO2; powder;
D O I
10.1016/S0254-0584(02)00226-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper reports the results of an investigation aiming at finding what affects the grain size of namo-TiO2 powder during synthesis. Nano-sized TiO2 powders have been prepared by a sol-gel method. The crystalline structures and morphologies of the powder have been characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The result shows that the different preparation conditions such as concentration, pH value, calcination time and calcination temperature have a lot of influences upon the properties of nano-TiO2 powders. The smallest grain size of TiO2 powder we have obtained is 6 nm by controlling the process conditions. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:184 / 188
页数:5
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