期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 43, 页码 15360-15368出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201501183
关键词
electron transport; nanostructures; photoelectrochemical performance; p-n heterojunction; solvothermal methods
资金
- Natural Science Foundation of China [21306030, 21203036]
- Guangdong Natural Science Foundation [2013040015229, 2014A030313520]
- Program Foundation of the second batch of innovation teams of Guangzhou Bureau of Education [13C04]
- Scientific Research Project of Guangzhou Municipal Colleges and Universities [1201410618]
- Fresh Talent Program of Guangzhou University [201302]
- National Abroad Studying Foundation of China
- Australian Research Council (ARC) [DP110102877, DP130104459]
The development of highly efficient and robust photocatalysts has attracted great attention for solving the global energy crisis and environmental problems. Herein, we describe the synthesis of a p-n heterostructured photocatalyst, consisting of ZnO nanorod arrays (NRAs) decorated with BiOI nanoplates (NPs), by a facile solvothermal method. The product thus obtained shows high photoelectrochemical water splitting performance and enhanced photoelectrocatalytic activity for pollutant degradation under visible light irradiation. The p-type BiOI NPs, with a narrow band gap, not only act as a sensitizer to absorb visible light and promote electron transfer to the n-type ZnO NRAs, but also increase the contact area with organic pollutants. Meanwhile, ZnO NRAs provide a fast electron-transfer channel, thus resulting in efficient separation of photoinduced electron-hole pairs. Such a p-n heterojunction nanocomposite could serve as a novel and promising catalyst in energy and environmental applications.
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