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Frontiers of Materials Science

, Volume 12, Issue 3, pp 264–272 | Cite as

Fabrication of Ag3PO4-AgBr-PTh composite loaded on Na2SiO3 with enhanced visible-light photocatalytic activity

  • Xiaojun Niu
  • Jinling Ma
Research Article
  • 5 Downloads

Abstract

A novel Ag3PO4-AgBr-PTh composite loaded on Na2SiO3 was synthesized for enhanced visible-light photocatalytic activity. The photocatalytic activity of the samples was evaluated by photodegrading rhodamine B (RhB) under visible light irradiation. The main reactive species and possible photocatalytic mechanism were also discussed. As a result, the Ag3PO4-AgBr-PTh composite loaded on Na2SiO3 exhibited enhanced photocatalytic activity for RhB compared with Ag3PO4 under visible-light irradiation. Additionally, it was demonstrated that the hole (h+) and superoxide radical (•O 2 ) were the major reactive species involving in the RhB degradation. PTh played vital role for the enhanced photocatalytic activity of Ag3PO4-AgBr-PTh-Na2SiO3 composite, which offered an electron transfer expressway and accelerated the transfer of the electrons from the CB of AgBr into Ag3PO4. This work could provide a new perspective for the synthesis of Ag3PO4-based composites and the improvement of photocatalytic activity of Ag3PO4.

Keywords

Ag3PO4-AgBr-PTh-Na2SiO3 composite PTh photocatalytic activity visible light 

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Notes

Acknowledgement

This work was supported by the open topics of State Key Laboratory of Pollution Control and Resource Research (PCRRF14006).

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Environment and EnergySouth China University of TechnologyGuangzhouChina

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