期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 6, 期 11, 页码 13739-13746出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.8b01622
关键词
few-layered BiOBr; expanded interlayer spacing; oxygen vacancies; oil field produced wastewater; exciton and carrier photocatalysis
资金
- National Natural Science Foundation of China [51502146, 51872147, 51702270, 21671113]
- Program for Innovative Research Team of Science and Technology in the University of Henan Province [19IRTSTHN025]
- Key scientific and technological research projects in Henan Province [152102210217]
Previous reports have demonstrated that carrier and exciton photocatalysis processes all occur with BiOBr photocatalysts. The photocatalytic properties of BiOBr can be improved through optimizing any of these processes. Herein, few-layered BiOBr nanosheets with expanded interlayer spacing and oxygen vacancies have been synthesized in situ and applied for environmental remediation, specifically for oil field produced wastewater decomposition. The efficient photocatalytic activity of few-layered BiOBr is due to the synergistic effect of both enhanced exciton and carrier photocatalysis, which has been explored and explained by trapping experiments, electron spin resonance (ERS) test, and reactive oxygen species (ROS) quantification experiments. This work demonstrates a novel, green, and sustainable method for the decomposition of oil field produced wastewater.
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