Graphene oxide as solid-state electron mediator enhanced photocatalytic activities of GO-Ag3PO4/Bi2O3Z-scheme photocatalyst efficiently by visible-light driven

Jixiang Wang, Hongqiang Shen, Xiaohui Dai, Chunmei Li, Weidong Shi, Yongsheng Yan

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The photocatalytic technology provides a simple and effective strategy for the ever-increasing environmental and energy problem. In this work, we put forward a practical method to facilitate effectively the separation of photogenerated electrons and holes by addition of graphene oxide in Ag3PO4and Bi2O3nanocrystals semiconductor composite. Compared with GO-single component, the three-component GO-Ag3PO4/Bi2O3composites with the optimum Ag3PO4/Bi2O3ratio (6:4) and content of GO (6 wt-%) presented a further improvement on the photodegradation of tetracycline by visible light irradiation driven. GO served as a medium is used to effectively transfer of the photogenerated electrons from the conduction band Bi2O3of to the valence band of Ag3PO4, the Z-Scheme photocatalytic degradation mechanism was proposed. Our work provides an effective method for development of pragmatic photocatalyst in present environmental pollution, energy problems and other related fields.

Original languageEnglish
Pages (from-to)421-432
Number of pages12
JournalMaterials Technology
Volume33
Issue number6
DOIs
StatePublished - 12 May 2018
Externally publishedYes

Keywords

  • AgPO
  • graphene
  • photocatalytic
  • tetracycline
  • Z-scheme

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