Hydrothermal preparation and characterization of brookite-type TiO2 nanocrystallites

被引：8
|
作者：
Zheng, YQ [1 ]
Erwei, S [1 ]
Cui, SX [1 ]
Li, WJ [1 ]
Hu, XF [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 201800, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE LETTERS | 2000年 / 19卷 / 16期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1023/a:1011010306699
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide in brookite form was prepared by two different methods under hydrothermal condition. One method used titanium sulfate as precursor, while the other used titanium tetrachloride as precursor. The growth mechanism of titanium dioxide includes two reaction steps. The first reaction is the hydrolysis of titanium salt, in which polynuclear species of hydrous titania are formed. The second reaction represents the crystallizing reaction under hydrothermal condition, in which various polynuclear hydrous titania are combined together through dehydration reaction to form titanium dioxide crystals.
引用
收藏
页码：1445 / 1448
页数：4
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