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Preparation Ag3PO4/AgVO3/Ag4V2O7 composites for enhancing visible light photocatalytic activity of Ag3PO4

  • Meirong Sui
  • Shuang Zhang
  • Xiuquan Gu
  • Meilin Shi
  • Yong Wang
  • Linlin Liu
Article

Abstract

The Ag3PO4/AgVO3/Ag4V2O7 composites were synthesized via a facile solution route for photodegrading the organic pollutants. Specifically, the Ag3PO4 microparticles were dispersed ultrasonically in the NH4VO3 aqueous solution for 3 h, with varying the NH4VO3 volumes for optimizing their photocatalytic (PC) activities. The structure, morphology and optical property of the obtained composites were characterized by using a series of techniques including the XRD, SEM, EDS and UV–Vis spectroscopy, while the PC activities of these samples were examined by evaluating their photodegradation capabilities towards the RhB. It was found that the composites with the NH4VO3 adding volumes of 5 and 20–80 mL displayed higher PC activities than pure Ag3PO4. Of them, the sample with a 60 mL NH4VO3 volume displayed the highest PC activity. The performance enhancement might be attributed to the formation of a heterojunction, leading to the better visible-light harvesting efficiency and the more rapid carrier transport. In addition, the trapping experiments suggested that the electron (e) was the sole active species for the RhB degradation.

Notes

Acknowledgements

This work was financially supported by Natural Science Fund for Colleges and Universities of Jiangsu Province (15KJB430031, 16KJB310019).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Meirong Sui
    • 1
  • Shuang Zhang
    • 2
  • Xiuquan Gu
    • 2
  • Meilin Shi
    • 1
  • Yong Wang
    • 1
  • Linlin Liu
    • 1
  1. 1.College of Medical ImagingXuzhou Medical UniversityXuzhouChina
  2. 2.School of Materials Science and EngineeringChina University of Mining and TechnologyXuzhouChina

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