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

Citation
Zs. Guan et al., Photocatalytic activity of TiO2 prepared at low temperature by a photo-assisted sol-gel method, J MATER RES, 16(4), 2001, pp. 907-909
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS RESEARCH
ISSN journal
0884-2914 → ACNP
Volume
16
Issue
4
Year of publication
2001
Pages
907 - 909
Database
ISI
SICI code
0884-2914(200104)16:4<907:PAOTPA>2.0.ZU;2-S
Abstract
TiO2 nanocrystals were prepared by a photo-assisted sol-gel process in whic h tetrabutoxide titanate was hydrolyzed in acidic medium under ultraviolet irradiation. X-ray diffraction and Raman spectra showed that the as-prepare d 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 crystal lized and showed lower activity when no light was introduced under otherwis e equal conditions.