Preparation of nanosized titania powder via the controlled hydrolysis of titanium alkoxide

被引:57
作者
Chen, JY
Gao, L
Huang, JH
Yan, DS
机构
[1] State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200 050
关键词
D O I
10.1007/BF00360754
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
By controlling the hydrolysis of titanium butoxide, followed with or without an ethanol washing process, the preparation of nanoscale titania powder was studied in detail. The characteristics of different powders produced by the direct precipitation (without an ethanol wash) and ethanol wash processes were studied by X-ray diffraction, transmission electron microscopy, BET, thermogravimetry and differential thermal analysis techniques. By comparison, it was found that both the direct precipitation and ethanol wash methods can obtain slightly agglomerated nanoscale titania powders of less than 15 nm, but the ethanol wash can further reduce the agglomeration. The particle sizes of titania powders can be modified while still retaining the anatase structure.
引用
收藏
页码:3497 / 3500
页数:4
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