AgInZn7S9 with a 2.3 eV band gap, which was a solid solution of AgInS2 and ZnS semiconductors, showed photocatalytic activity for H2 evolution from an aqueous solution containing sacrificial reagents SO32− and S2− under visible light irradiation (λ > 420 nm) even without a Pt cocatalyst, and loading of the Pt cocatalyst improved the photocatalytic activity.
A. Kudo, I. Tsuji and H. Kato, Chem. Commun., 2002, 1958 DOI: 10.1039/B204259B
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