title: Formation of mesoporous heterostructured BiVO₄/Bi₂S₃ hollow discoids with enhanced photoactivity.
abstract: 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 Cr(VI) under visible-light illumination.
authors.affiliation: Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004 (P.R. China).
authors.forename: Xuehui
authors.initials: X
authors.lastname: Gao
authors.forename: Hao Bin
authors.initials: HB
authors.lastname: Wu
authors.forename: Lingxia
authors.initials: L
authors.lastname: Zheng
authors.forename: Yijun
authors.initials: Y
authors.lastname: Zhong
authors.forename: Yong
authors.initials: Y
authors.lastname: Hu
authors.forename: Xiong Wen David
authors.initials: XW
authors.lastname: Lou
keywords: energy conversion; mesoporous materials; photoelectrochemistry; semiconductors