Journal
NEW JOURNAL OF CHEMISTRY
Volume 39, Issue 4, Pages 3129-3136Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nj00227c
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Funding
- National Natural Science Foundation of China [21303094, 21475075, 21103193]
- Scientific Research Foundation of the Qufu Normal University
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BiOClxBr1-x sheets were synthesized by a simple precipitation method. These samples showed good activities in the degradation of rhodamine B (RhB) under visible light irradiation (420 nm < lambda < 800 nm). From a series of characterization techniques, the results showed that the degradation was driven by the photosensitization of RhB and photocatalysis of BiOClxBr1-x. The mechanism of the synergistic degradation processes was explored by comparing the degradation properties of BiOClxBr1-x (Cl : Br = 1 : 1) and BiOBr. The main active species that played important roles in the degradation process were electrons and O-2(center dot-) in the BiOClxBr1-x (Cl : Br = 1 : 1) system, while in the BiOBr system, electrons, O-2(center dot-) and holes were the main active species. Such a heterogeneous synergistic degradation reaction has much significance in revealing the degradation mechanism of organic pollutants in ordinary photocatalysis.
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