Low-temperature hydrothermal synthesis of S-doped TiO{sub 2} with visible light photocatalytic activity
- Department of Chemistry, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong (China)
- Department of Civil and Structural Engineering, Research Center for Urban Environmental Technology and Management, Hong Kong Polytechnic University, Hong Kong (China)
A one-step low-temperature hydrothermal route was developed for the synthesis of S-doped TiO{sub 2} photocatalysts from TiS{sub 2} and HCl. Crystalline TiO{sub 2} was formed and sulfur could be efficiently doped into the anatase lattice under hydrothermal conditions. When the initial TiS{sub 2} concentration is increased, the content of S-dopant and optical absorption in the visible region also increase. The photocatalytic activity of the S-doped TiO{sub 2} was evaluated through the degradation of 4-chlorophenol under visible light irradiation. Our results show that the S-doped TiO{sub 2} prepared by this hydrothermal approach possesses much higher photocatalytic activity than that obtained by the traditional high-temperature thermal annealing method.
- OSTI ID:
- 20784970
- Journal Information:
- Journal of Solid State Chemistry, Vol. 179, Issue 4; Other Information: DOI: 10.1016/j.jssc.2006.01.009; PII: S0022-4596(06)00019-3; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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