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Issue 7, 2020
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Visible-light-driven organic transformations integrated with H2 production on semiconductors

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Abstract

Due to its clean and sustainable nature, solar energy has been widely recognized as a green energy source in driving a variety of reactions, ranging from small molecule activation and organic transformation to biomass valorization. Within this context, organic reactions coupled with H2 evolution via semiconductor-based photocatalytic systems under visible light irradiation have gained increasing attention in recent years, which utilize both excited electrons and holes generated on semiconductors and produce two types of value-added products, organics and H2, simultaneously. Based on the nature of the organic reactions, in this review article we classify semiconductor-based photocatalytic organic transformations and H2 evolution into three categories: (i) photocatalytic organic oxidation reactions coupled with H2 production, including oxidative upgrading of alcohols and biomass-derived intermediate compounds; (ii) photocatalytic oxidative coupling reactions integrated with H2 generation, such as C–C, C–N, and S–S coupling reactions; and (iii) photo-reforming reactions together with H2 formation using organic plastics, pollutants, and biomass as the substrates. Representative heterogeneous photocatalytic systems will be highlighted. Specific emphasis will be placed on their synthesis, characterization, and photocatalytic mechanism, as well as the organic reaction scope and practical application.

Graphical abstract: Visible-light-driven organic transformations integrated with H2 production on semiconductors

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Article information


Submitted
18 May 2020
Accepted
27 Jul 2020
First published
27 Jul 2020

This article is Open Access

Mater. Adv., 2020,1, 2155-2162
Article type
Review Article

Visible-light-driven organic transformations integrated with H2 production on semiconductors

J. Tang and Y. Sun, Mater. Adv., 2020, 1, 2155
DOI: 10.1039/D0MA00327A

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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