期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 503, 期 -, 页码 115-123出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.05.016
关键词
Solid-state reaction; Hierarchical structure; Bismuth compound; Photocatalysis
资金
- National Natural Science Foundation of China [U1503392, 21471127, 21361024]
- Natural Science Foundation of Xinjiang Province [2014711004, 2014211A013]
- Xinjiang University [XJUBSCX-2015010]
- Graduate Research Innovation Project of Xinjiang [XJGRI2016012]
A rapid and cheap solid-state chemical process was employed to synthesize BiOClxI1X (x=1.0, 0.75, 0.5, 0.25, 0) solid solutions with dahlia-shaped hierarchitectures. The dahlia-shaped BiOClxI1X. hierarchitectures were effectively constructed by nanoplates with a thickness about 513 nm. The band gap structure of the solid solutions can be modulated by adjusting the composition ratio of Cl and I, which has a significant effect on the photocatalytic activity of the solid solutions. The dahlia-shaped BiOClxI1X (x = 0.75) solid solution exhibits excellent adsorption and effective photocatalytic performances for rhodamine B (RhB) under visible light irradiation, which degraded more than 98% of RhB within 60 min under the visible light irradiation, it is higher than the reported bismuth oxyhalides materials. The trapping experiments confirmed that center dot O2- and h(+) played the major role in the photocatalytic process and the possible photocatalytic reaction mechanism was illustrated. (C) 2017 Elsevier Inc. All rights reserved.
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