Chinese Journal of Catalysis ›› 2020, Vol. 41 ›› Issue (1): 180-187.DOI: 10.1016/S1872-2067(19)63484-4

• Other photocatalytic application • Previous Articles     Next Articles

MoSe2/ZnO/ZnSe hybrids for efficient Cr(VI) reduction under visible light irradiation

Zhenxing Rena, Xinjuan Liub, Zhihao Zhugeb, Yinyan Gongb, Chang Q. Sunc   

  1. a Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, Shanxi, China;
    b Institute of Optoelectronic Materials and Devices, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, Zhejiang, China;
    c School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
  • Received:2019-04-03 Revised:2019-08-12 Online:2020-01-18 Published:2019-10-22
  • Supported by:
    Financial support from the Natural Science Foundation of Zhejiang Province (LY18E060005, LY19E020006) is gratefully acknowledged.

Abstract: Photocatalysis activated by visible light remains highly challenging. Here, we report novel MoSe2/ZnO/ZnSe (ZM) hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI) under visible light irradiation. ZM hybrids show improved photocatalytic reduction ability under visible light irradiation compared to pure ZnO owing to good visible light absorption and rapid electron transfer and separation. The ZM hybrid shows the highest Cr(VI) reduction rate of 100%. Moreover, the photocatalytic Cr(VI) reduction process is mainly controlled by photoinduced electrons.

Key words: Transition metal dichalcogenides, MoSe2, ZnO, ZnSe, Cr(VI)