Jun Ke2, M. Adnan Younis1, Yan Kong1, Hongru Zhou2, Jie Liu3, *, Lecheng Lei1, Yang Hou1, *
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Abstract
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1Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang, People’s Republic of China 2School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, 693 Xiongchu Ave, Hongshan District, Wuhan, Hubei, People’s Republic of China 3Department of Environmental Science & Engineering, North China Electric Power University, 619 Yonghua N St, Baoding, Hebei, People’s Republic of China
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Nano-Micro Lett. (2018) 10: 69
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First Online: 2 September 2018 (Review)
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DOI:10.1007/s40820-018-0222-4
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*Corresponding author. E-mail: yhou@zju.edu.cn ; liujiedut@hotmail.com |
Abstract
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Visible-light-responsive ternary metal tungstate (MWO4) photocatalysts are being increasingly investigated for energy conversion and environmental purification applications owing to their striking features, including low cost, eco-friendliness, and high stability under acidic and oxidative conditions. However, rapid recombination of photoinduced electron-hole pairs and a narrow light response range to the solar spectrum lead to low photocatalytic activity of MWO4-based materials, thus significantly hampering their wide usage in practice. To enable their widespread practical usage, significant efforts have been devoted, by developing new concepts and innovative strategies. In this review, we aim to provide an integrated overview of the fundamentals and recent progress of MWO4-based photocatalysts. Furthermore, different strategies, including morphological control, surface modification, heteroatom doping, and heterojunction fabrication, which are employed to promote the photocatalytic activities of MWO4-based materials, are systematically summarized and discussed. Finally, existing challenges and a future perspective are also provided to shed light on the development of highly efficient MWO4-based photocatalysts.
Keywords
Ternary metal tungstates; Micro- and nanostructures; Photocatalysis; Environmental purification; Water splitting
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