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Photocatalytic activity of TiO2 prepared at low temperature by a photo-assisted sol-gel method

Published online by Cambridge University Press:  31 January 2011

Zi-Sheng Guan ,
Xin-Tong Zhang ,
Ying Ma ,
Ya-An Cao  and
Jian-Nian Yao
Zi-Sheng Guan
Affiliation:
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
Xin-Tong Zhang
Affiliation:
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
Ying Ma
Affiliation:
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
Ya-An Cao
Affiliation:
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
Jian-Nian Yao*
Affiliation:
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
*
a)Address all correspondence to this author.jnyao@ipc.ac.cn.
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Abstract

TiO2 nanocrystals were prepared by a photo-assisted sol-gel process in which tetrabutoxide titanate was hydrolyzed in acidic medium under ultraviolet irradiation. X-ray diffraction and Raman spectra showed that the as-prepared TiO2 particles without further annealing were well-crystallized anatase. Such TiO2 particles were easily immobilized on dacron cloth and showed very high photocatalytic activity. In contrast, TiO2 particles were ill crystallized and showed lower activity when no light was introduced under otherwise equal conditions.

Information

Type
Rapid Communications
Information
Journal of Materials Research , Volume 16 , Issue 4 , April 2001 , pp. 907 - 909
Copyright
Copyright © Materials Research Society 2001

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