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MoS 2 as Cocatalyst for Improving Photocatalytic Performance of Bi 2 MoO 6
Author(s) -
Li Yaxin,
Hong Haitao,
Xue Xin,
Zhang Zheng,
Tian Hongwei
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201900016
Subject(s) - photocatalysis , materials science , bismuth , visible spectrum , composite number , hydrothermal circulation , band gap , catalysis , absorption (acoustics) , reaction rate constant , photochemistry , optoelectronics , chemical engineering , nanotechnology , kinetics , composite material , chemistry , metallurgy , physics , biochemistry , engineering , quantum mechanics
Abstract Bi 2 MoO 6 is a bismuth‐based multi‐element photocatalyst with good visible light response due to its narrow band gap. However, its high photogenerated electron‐hole recombination rate limits its application as a photocatalyst. In this work, visible‐light‐driven MoS 2 /Bi 2 MoO 6 composite photocatalyst was successfully synthesized by a hydrothermal method. The composite containing 1% MoS 2 exhibited the best photodegradability and good cycling stability. The apparent reaction rate constant for the 1% MoS 2 decorated Bi 2 MoO 6 (0.03625) was about 2 times higher than that of pure Bi 2 MoO 6 (0.01913). As a non‐precious metal promoter, MoS 2 promoted the carrier‐separation efficiency and improved the absorption of visible light, which resulted in the enhancement of photocatalytic activity of the composite catalyst.