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Formation of Mesoporous Heterostructured BiVO 4 /Bi 2 S 3 Hollow Discoids with Enhanced Photoactivity
Author(s) -
Gao Xuehui,
Wu Hao Bin,
Zheng Lingxia,
Zhong Yijun,
Hu Yong,
Lou Xiong Wen David
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201403611
Subject(s) - heterojunction , photocatalysis , mesoporous material , materials science , semiconductor , aqueous solution , visible spectrum , nanotechnology , ion , chemical engineering , ion exchange , nanoparticle , optoelectronics , catalysis , chemistry , biochemistry , organic chemistry , engineering
Semiconductor heterostructures are of great interest in a wide range of applications. In this work, we design and synthesize a novel heteronanostructure with controlled relative composition, i.e., BiVO 4 /Bi 2 S 3 hollow discoid‐like particles with mesoporous shell. The synthesis involves a facile anion exchange process by reacting pre‐synthesized BiVO 4 discoid‐like particles with Na 2 S in an aqueous solution. Benefiting from the unique structural features and the formation of heterostructure, the as‐prepared BiVO 4 /Bi 2 S 3 hollow discoids exhibit significantly enhanced photoelectrochemical current response and photocatalytic activity for reduction of Cr VI under visible‐light illumination.