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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., 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.
Gao et al. (Mon,) studied this question.
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