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Enhanced photocatalytic performance of Bi 2 Fe 4 O 9 /graphene via modifying graphene composite
Author(s) -
Liu Pengdong,
Sun Huajun,
Liu Xiaofang,
Sui Huiting,
Zhang Yong,
Zhou Dingguo,
Guo Qinghu,
Ruan Yong
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14883
Subject(s) - graphene , composite number , photocatalysis , materials science , nanotechnology , chemical engineering , chemistry , composite material , catalysis , engineering , biochemistry
Abstract Bi 2 Fe 4 O 9 ( BFO ) is one of the most important photocatalyst materials and its composition with graphene may leave an optimizing effect on the photocatalytic performance. In this paper, reduced graphene oxide ( RGO ) with various contents is selected to be composited with BFO successfully via one‐step hydrothermal method. A series of BFO ‐ x RGO ( x =0, 1.25, 2.50, 3.75, 5, 6.25, and 7.50 wt.%) were prepared and the effects of RGO content on crystalline, light absorption, impedance, and photocatalytic degradation rate of methyl violet ( MV ) solution are characterized. The entire film samples exhibit enhanced photocatalytic efficiency. Especially, with 5 wt.% RGO content added, the film sample shows the best photocatalytic degradation efficiency with a MV solution degradation rate of 95%. This implies that the composition of RGO allows BFO ‐based thin film as an efficient photocatalyst candidate, and as well, the BFO / RGO composite possesses the potential for better use in the related photocatalyst applications.