Facile fabrication of novel BiVO4/Bi2S3/MoS2 n-p heterojunction with enhanced photocatalytic activities towards pollutant degradation under natural sunlight

Jingzhen Wang; Jia Jin; Xiangguo Wang; Shengnan Yang; Yinlan Zhao; Yawen Wu; Shuying Dong; Jingyu Sun; Jianhui Sun

doi:10.1016/j.jcis.2017.06.085

Facile fabrication of novel BiVO₄/Bi₂S₃/MoS₂ n-p heterojunction with enhanced photocatalytic activities towards pollutant degradation under natural sunlight

J Colloid Interface Sci. 2017 Nov 1:505:805-815. doi: 10.1016/j.jcis.2017.06.085. Epub 2017 Jun 27.

Authors

Jingzhen Wang¹, Jia Jin¹, Xiangguo Wang², Shengnan Yang¹, Yinlan Zhao¹, Yawen Wu¹, Shuying Dong³, Jingyu Sun⁴, Jianhui Sun⁵

Affiliations

¹ School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China.
² Soochow Institute for Energy and Materials InnovationS, Soochow University, Suzhou, Jiangsu 215006, PR China.
³ School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China. Electronic address: shidashuying@163.com.
⁴ Soochow Institute for Energy and Materials InnovationS, Soochow University, Suzhou, Jiangsu 215006, PR China. Electronic address: sunjy86@suda.edu.cn.
⁵ School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China. Electronic address: sunjhhj@163.com.

PMID: 28672260
DOI: 10.1016/j.jcis.2017.06.085

Abstract

The novel three-component BiVO₄/Bi₂S₃/MoS₂ heterojunction was successfully fabricated through a facile in-situ hydrothermal method based on the formation of the intermediate Bi₂S₃ by coupling BiVO₄ and MoS₂ precursor. The Bi₂S₃ was easily formed attributing to the strong interaction between Bi³⁺and S^2- ions with the aid of the hydrothermal reaction. The photocatalytic performances of samples were systematically investigated via the photocatalytic degradation of Rhodamine B (RhB), methylene blue (MB) and malachite green (MG) under solar light irradiation. As a result, the photocatalytic degradation rate of BM-10 for RhB, MB and MG are 97%, 93% and 94%, respectively. The enhanced photocatalytic activities could be due to the suppression of charge recombination and the enhanced the visible light absorption of BiVO₄/Bi₂S₃/MoS₂ heterojunction.

Keywords: Hydrothermal; Natural sunlight; Three-component n-p heterojunction.