Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 116, Issue 4, Pages 2139-2147Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-014-8425-0
Keywords
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Funding
- National Science Foundation of China [21171002]
- Natural Science Foundation of Anhui Province [11040606M55]
- Foundation of Education Committee of Anhui Province [KJ2010A015]
- research project of graduate academic innovation of Anhui University [01001770-10117700078]
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A novel composite photocatalyst Ag/AgBr/MoO3 was successfully synthesized via a simple precipitation method at room temperature. The obtained products were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, high-resolution transmission electron microscopy and UV-vis diffuse reflectance spectroscopy in detail. The photocatalytic activity of the samples was evaluated by monitoring the degradation of rhodamine B (RhB) solution under visible-light irradiation. The results showed that the photocatalytic activity of Ag/AgBr/MoO3 composite significantly enhanced and the degradation ratio of RhB reached 97.7 % after 15 min only. The excellent photocatalytic activity might be closely related to the large surface area, porosity structure and efficient separation of photoinduced electron-hole pairs. The possible reaction mechanism was also discussed.
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