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Facile synthesis of ZnO/BiVO 4 photocatalyst with enhanced photocatalytic performance

YANHONG GUO1, QIANGEN LI1, XIAOMING GAO1,* , KAILONG GAO1, LIBO LIU1

Affiliation

  1. Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Y an’an University, Yan’an, Shaanxi 716000, China

Abstract

To fabricate composite with narrow gap semiconductor are considered as a tactics for photocatalyst material with high ability ZnO/BiVO4 composite was hydrothermal synthesis, and the crystal structure and morphology was investigated by XRD, DRS, SEM and TEM. The photocatalytic activity of ZnO/BiVO4 was examined by degradation of methylene blue and thiophene. The removal rate for methylene blue of 20wt% ZnO/BiVO4 was 2.8 and 3.3 times than that of pristine Z nO and BiVO4, respectively, and the desulfurization rate of model oil arrived at 97.4% after 120 min illumination. The synergistic effect of active oxidizing species involving in photocatalytic degradation process was researched in detail, with emphasized on the contribution of the hydroxyl free radical to the photocatalytic activity.

Keywords

ZnO/BiVO4 composite, Photocatalytic, Oxidation.

Citation

YANHONG GUO, QIANGEN LI, XIAOMING GAO, KAILONG GAO, LIBO LIU, Facile synthesis of ZnO/BiVO 4 photocatalyst with enhanced photocatalytic performance, Optoelectronics and Advanced Materials - Rapid Communications, 14, 1-2, January-February 2020, pp.84-91 (2020).

Submitted at: Jan. 21, 2019

Accepted at: Feb. 17, 2020