Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 509, Issue 7, Pages 3286-3292Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.11.193
Keywords
Ag/AgCl/ZnO; Photocatalyst; Methyl orange; Noble metal
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Funding
- National Nature Science Foundation of China [21007021, 21076099, 20876071]
- Research Foundation of Jiangsu University [10JDG128]
- Society Development Fund of Zhenjiang [SH2010006]
- Doctoral Innovation Fund of Jiangsu [CX10B-275Z]
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A new composite photocatalyst Ag/AgCl/ZnO was fabricated by a two-step synthesis method under the hydrothermal condition. The sample was characterized by XRD, TG-DSC, SEM, TEM, DRS and XPS. The results showed that the samples were composed of Ag, AgCl and ZnO, and the particle size was in the range of 100 nm-1 mu m. Methyl orange (MO) was used as a representative dye pollutant to evaluate the photocatalytic activity of Ag/AgCl/ZnO. The photocatalytic activity of Ag/AgCl/ZnO catalyst was higher than that of the pure ZnO catalyst. It was found that the Ag/AgCl/ZnO structure changed to Ag/ZnO gradually after several repeated experiments. However, the photocatalytic ability of the sample was not reduced. Finally, a possible photocatalytic mechanism was proposed. (C) 2010 Elsevier B.V. All rights reserved.
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