Efficient photoredox conversion of alcohol to aldehyde and H2 by heterointerface engineering of bimetal–semiconductor hybrids

Chuang Han; Zi-Rong Tang; Junxue Liu; Shengye Jin; Yi-Jun Xu

doi:10.1039/C8SC05813J

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Efficient photoredox conversion of alcohol to aldehyde and H₂ by heterointerface engineering of bimetal–semiconductor hybrids†

Chuang Han,^ab Zi-Rong Tang,

^b Junxue Liu,^c Shengye Jin*^c and Yi-Jun Xu

*^ab

Author affiliations

* Corresponding authors

^a State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, China
E-mail: yjxu@fzu.edu.cn

^b College of Chemistry, Fuzhou University, New Campus, Fuzhou, China

^c State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, China
E-mail: sjin@dicp.ac.cn

Abstract

Controllable and precise design of bimetal– or multimetal–semiconductor nanostructures with efficient light absorption, charge separation and utilization is strongly desired for photoredox catalysis applications in solar energy conversion. Taking advantage of Au nanorods, Pt nanoparticles, and CdS as the plasmonic metal, nonplasmonic co-catalyst and semiconductor respectively, we report a steerable approach to engineer the heterointerface of bimetal–semiconductor hybrids. We show that the ingredient composition and spatial distribution between the bimetal and semiconductor significantly influence the redox catalytic activity. CdS deposited anisotropic Pt-tipped Au nanorods, which feature improved light absorption, structure-enhanced electric field distribution and spatially regulated multichannel charge transfer, show distinctly higher photoactivity than blank CdS and other metal–CdS hybrids for simultaneous H₂ and value-added aldehyde production from one redox cycle.

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Article information

DOI: https://doi.org/10.1039/C8SC05813J
Article type: Edge Article
Submitted: 30 Dec 2018
Accepted: 07 Feb 2019
First published: 07 Feb 2019
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry

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Chem. Sci., 2019,10, 3514-3522

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Efficient photoredox conversion of alcohol to aldehyde and H₂ by heterointerface engineering of bimetal–semiconductor hybrids

C. Han, Z. Tang, J. Liu, S. Jin and Y. Xu, Chem. Sci., 2019, 10, 3514 DOI: 10.1039/C8SC05813J

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