Photocatalytic hydrogenation of azobenzene to hydrazobenzene on cadmium sulfide under visible light irradiation

Visible-light irradiation ( λ < 600 nm) of commercially-available CdS in alcohol successfully promotes hydrogenation of azobenzene to hydrazobenzene with more than 95% selectivity. This is promoted by strong adsorption of azobenzene to the photoformed zerovalent Cd species adjacent to the surface...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2018, Vol.54 (5), p.452-455
Main Authors: Shiraishi, Yasuhiro, Katayama, Miyu, Hashimoto, Masaki, Hirai, Takayuki
Format: Article
Language:English
Subjects:
Cadmium sulfide
Hydrogenation
Light irradiation
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Summary:Visible-light irradiation ( λ < 600 nm) of commercially-available CdS in alcohol successfully promotes hydrogenation of azobenzene to hydrazobenzene with more than 95% selectivity. This is promoted by strong adsorption of azobenzene to the photoformed zerovalent Cd species adjacent to the surface S vacancies on CdS; this leads to efficient reduction to hydrazobenzene. Visible light irradiation of commercially-available CdS in alcohol successfully promotes selective azobenzene-to-hydrazobenzene reduction, where surface S vacancies play a crucial role for activity and selectivity.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc08428e