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BiVO4/BiO0.67F1.66 heterojunction enhanced charge carrier separation to boost photocatalytic activity

  • Xinyan Feng
  • Xiaojun Zhao
  • Limiao ChenEmail author
Research Paper
  • 58 Downloads

Abstract

BiVO4/BiO0.67F1.66 heterojunction composites with cake-like morphology have been successfully synthesized by a two-step hydrothermal route for the first time. As-prepared BiVO4/BiO0.67F1.66 microstructures were characterized with X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible (UV-vis) diffuse absorption spectroscope, and Brunauer-Emmett-Teller (BET) surface area measurements. The photocatalytic performance of the BiVO4/BiO0.67F1.66 composites was evaluated by studying the visible-light decomposition of rhodamine B (RhB) and phenol molecules in water solution. The BiVO4/BiO0.67F1.66 composites exhibit an obviously improved photocatalytic activity in comparison with the pure BiVO4, as a result of the increased surface area and the unique p–n heterojunction between BiO0.67F1.66 and BiVO4.

Keywords

Bismuth vanadate Hydrothermal synthesis Heterostructure Photocatalysis Nanostructured catalysts 

Notes

Funding information

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

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11051_2019_4506_MOESM1_ESM.docx (707 kb)
ESM 1 (DOCX 707 kb)

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

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

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