Journal
CHEMICAL ENGINEERING JOURNAL
Volume 146, Issue 1, Pages 42-48Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2008.05.041
Keywords
Ag/TiO2 film; Photodegradation; Visible light; Catalytic efficiency
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Funding
- Tianjin Municipal Natural Science Foundation [07JCYBJC14900]
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Ag/TiO2 photocatalytic films were produced by hybrid sol-gel method. The photocatalytic degradation of methyl orange (MO) in aqueous solution under both UV and visible light irradiation on TiO2 and Ag/TiO2 thin films was investigated. The state and amount of Ag species within the film and the enhancement mechanism of photocatalytic activity of Ag/TiO2 were discussed. The maximum catalytic efficiency was observed under both UV and visible light irradiation. The molar ratio of Ag/Ti corresponding to the best catalytic activity depends on the wavelength of the radiation employed. (c) 2008 Elsevier B.V. All rights reserved.
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