Formation of mesoporous heterostructured BiVO4/Bi2S3 hollow discoids with enhanced photoactivity
Wu, Hao Bin
Lou, David Xiong Wen
Date of Issue2014
School of Chemical and Biomedical 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., BiVO4/Bi2S3 hollow discoid-like particles with mesoporous shell. The synthesis involves a facile anion exchange process by reacting pre-synthesized BiVO4 discoid-like particles with Na2S in an aqueous solution. Benefiting from the unique structural features and the formation of heterostructure, the as-prepared BiVO4/Bi2S3 hollow discoids exhibit significantly enhanced photoelectrochemical current response and photocatalytic activity for reduction of CrVI under visible-light illumination.
Angewandte Chemie international edition
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