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Oxysulfide semiconductors for photocatalytic overall water splitting with visible light

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Zhang,  Guigang
Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Zhang, G., & Wang, X. (2019). Oxysulfide semiconductors for photocatalytic overall water splitting with visible light. Angewandte Chemie, International Edition, 58(44), 15580-15582. doi:10.1002/anie.201909669.


Cite as: http://hdl.handle.net/21.11116/0000-0004-E4FE-D
Abstract
Photocatalytic overall water splitting by sulfide‐based materials is a great challenge because of the poor resilience of such materials against hole oxidation. In a recent study, Domen and co‐workers developed an innovative strategy to stabilize sulfide‐based photocatalysts by hybridizing S 3p with O 2p orbitals to produce oxysulfides in which S2− is stable. Further surface engineering of the oxysulfides with dual co‐catalysts promoted charge separation and interface transfer, thus reducing the charge build‐up that inhibits photocorrosion. The pH value of the reaction mixture is a critical consideration for achieving efficient stoichiometric H2 and O2 evolution by these oxysulfide photocatalysts.