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Synthesis and characterization of V2O5/BiVO4 cake-like microstructures

  • Limiao ChenEmail author
  • Xinyan Feng
Research
  • 5 Downloads

Abstract

V2O5/BiVO4 cake-like microstructures with uniform diameter were successfully fabricated with excess NaVO3 in the reaction solution under hydrothermal conditions. As-fabricated V2O5/BiVO4 microstructures were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-vis absorption spectroscopy, photoluminescence (PL) spectroscopy, and Brunauer-Emmett-Teller (BET) surface area measurements. The possible formation mechanism of the cake-like V2O5/BiVO4 microstructure was proposed based on the morphological evolution versus the reaction time. The photocatalytic performance of the V2O5/BiVO4 composites was measured by studying the visible-light decomposition of rhodamine B (RhB) molecules in solution. The V2O5/BiVO4 composites exhibit an obviously enhanced photocatalytic activity compared to the pure BiVO4, as a result of the strengthened absorption ability in the visible-light region and the formation of heterojunction structure between V2O5 and BiVO4. This work presents a new way to develop BiVO4-based efficient photocatalysts in the application of wastewater treatment.

Keywords

Bismuth vanadate Vanadium pentoxide Composite photocatalyst Hydrothermal synthesis Photocatalytic activity 

Notes

Funding information

This work was supported by the National Natural Science Foundation of China (No. 21776317).

Supplementary material

41779_2019_319_MOESM1_ESM.docx (1.1 mb)
ESM 1 (DOCX 1075 kb)

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Copyright information

© Australian Ceramic Society 2019

Authors and Affiliations

  1. 1.College of Chemistry and Chemical EngineeringCentral South UniversityChangshaPeople’s Republic of China

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