Preparation of photoactive anatase-type TiO2/silica gel by direct loading anatase-type TiO2 nanoparticles in acidic aqueous solutions by thermal hydrolysis

被引：15
作者：
Hirano, M [1 ]
Ota, K [1 ]
机构：
[1] Aichi Inst Technol, Fac Engn, Dept Appl Chem, Yakusa Toyota 4700392, Japan
来源：
JOURNAL OF MATERIALS SCIENCE | 2004年 / 39卷 / 05期
关键词：
D O I：
10.1023/B:JMSC.0000016199.85213.0b
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The thermal hydrolysis of acidic aqueous TiOSO4 solution to directly load nanometer-sized anatase-type TiO2 on the silica gel particles and their photoactivity was investigated. Among three polymorphs, the metastable phase of anatase-type TiO2 exhibited the most excellent photoactivity. The addition of SiO2 into TiO2 enhanced the phase stability. The results show that the amount of loaded anatase-type TiO2 on the silica gel is increased and the translucency of the silica gel is decreased with increasing the concentration of the TiOSO 4 solution.
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收藏
页码：1841 / 1844
页数：4
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