Elimination of BPA endocrine disruptor by magnetic BiOBr@SiO2@Fe3O4 photocatalyst

Ling Zhang, Wenzhong Wang, Songmei Sun, Yuanyuan Sun, Erping Gao, Zhijie Zhang

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Seeking an ideal water treatment method for endocrine disrupting compounds, which would mineralize the pollutants with least byproducts, is urgent for environmental remediation and human health. Herein, the photocatalytic elimination of 2,2-bis(4-hydroxyphenyl) propane (BPA) by BiOBr@SiO2@Fe3O4 under the irradiation of different light sources was investigated. The experimental results revealed that the photocatalytic activity of the recyclable magnetic BiOBr@SiO2@Fe3O4 microspheres was superior to that of commercial TiO2 (P25) under the visible light irradiation. More importantly, only one main intermediate was detected during the photocatalytic degradation. To analyze the photocatalytic degradation mechanism of BPA, particular attention was paid to the identification of active species and intermediates. On the basis of the evidence of active species formation, a detailed degradation pathway of BPA degradation by BiOBr@SiO2@Fe3O4 microspheres photocatalysts is proposed. This study provides a reasonable insight into the correlation between the active species and intermediated during the photocatalytic degradation process.

Original languageEnglish
Pages (from-to)164-169
Number of pages6
JournalApplied Catalysis B: Environmental
Volume148-149
DOIs
Publication statusPublished - Apr 27 2014

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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