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Bi 2 MoO 6 Nanostrip Networks for Enhanced Visible‐Light Photocatalytic Reduction of CO 2 to CH 4
Author(s) -
Zhang Yuan,
Li Liang,
Han Qiutong,
Tang Lanqin,
Chen Xingyu,
Hu Jianqiang,
Li Zhaosheng,
Zhou Yong,
Liu Junming,
Zou Zhigang
Publication year - 2017
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201700655
Subject(s) - photocatalysis , visible spectrum , materials science , hydrothermal circulation , band gap , catalysis , photochemistry , absorption (acoustics) , charge carrier , chemistry , optoelectronics , chemical engineering , organic chemistry , engineering , composite material
A three‐dimensional Bi 2 MoO 6 nanostrip architecture was synthesized by the hydrothermal method using sodium oleate as a surfactant. The generated Bi 2 MoO 6 nanostrips intercross with each other to form a unique network structure with a band gap of 2.92 eV, corresponding to visible‐light wavelength. Time‐evolution experiments reveal the formation mechanism of the Bi 2 MoO 6 network. The photocatalytic reduction of CO 2 to CH 4 catalyzed by the Bi 2 MoO 6 architecture was evaluated and compared with the process catalyzed by a Bi 2 MoO 6 nanoplate analogue synthesized in the absence of sodium oleate as well as with the solid‐state reaction. The Bi 2 MoO 6 nanostrips exhibit the best photocatalytic activity, which can be attributed to their high specific surface area, high light‐absorption intensity, suitable thickness for fast charge‐carrier migration, and the presence of pores for reactant transport.