Few Layered BiOBr with Expanded Interlayer Spacing and Oxygen Vacancies for Efficient Decomposition of Real Oil Field Produced Wastewater

Xian Shi, Pingquan Wang, Li Wang, Yang Bai, Haiquan Xie, Ying Zhou, Jin An Wang, Zhongjun Li, Lingbo Qu, Mingji Shi, Liqun Ye

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)13739-13746
Number of pages8
JournalACS Sustainable Chemistry and Engineering
Volume6
Issue number11
DOIs
StatePublished - 5 Nov 2018
Externally publishedYes

Keywords

  • exciton and carrier photocatalysis
  • expanded interlayer spacing
  • few-layered BiOBr
  • oil field produced wastewater
  • oxygen vacancies

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