期刊
CATALYSIS TODAY
卷 225, 期 -, 页码 158-163出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2013.10.085
关键词
Photocatalysis; Visible light; Mesoporous; Tantalum oxide; Water splitting
资金
- Ministry of Science and Technology of China [2014CB239402, 2013CB834505]
- National Natural Science Foundation of China [51322213, 21301183, 20901081, 51172245, 91127005]
- Knowledge Innovation Project of the Chinese Academy of Sciences [KGCX2-EW-311-3]
- Beijing Natural Science Foundation [2112042, 2122054]
- 100 Talents Program of the Chinese Academy of Sciences
- Scientific Research Foundation for Returned Scholars of Ministry of Education of China
Au-loaded mesoporous Ta2O5 (Au/m-Ta2O5) with high visible light photocatalytic activities were successfully prepared via a facile photodeposition methodology. The photocatalytic activities of Au/m-Ta2O5 were then evaluated by photocatalytic hydrogen production from a methanol aqueous solution as well as photodegradation of Rhodamine B in aqueous solution under visible light irradiation (lambda > 400 nm). The photocatalytic experimental results showed that Au/m-Ta2O5 exhibited enhanced visible light photocatalytic activities than those of Au-loaded commercial bulk Ta2O5 (Au/b-Ta2O5). This was mainly due to its large specific surface area and mesoporous structure. The possible visible-light-driven photocatalytic mechanism of Au/Ta2O5 was also proposed. (C) 2013 Elsevier B.V. All rights reserved.
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