Abstract
The ZnIn2S4/CdS hollow core-shell nanoheterostructure with bimetallic synergism is synthesized via a hybrid chemical method. As revealed, the ZnIn2S4/CdS hollow core-shell nanoheterostructure (ZnIn2S4/CdS-3) exhibits remarkable visible light photocatalytic hydrogen evolution (∼5209.43 μmol·g−1·h−1, AQE of ∼20.26%) than that of single CdS (∼40 folds) and single ZnIn2S4 (∼12 folds), and achieves decent photocatalytic stability (average HER performance of ∼5056.80 μmol·g−1·h−1), which is mainly ascribed to that, the formed ZnIn2S4/CdS heterostructure with appropriate potential gradient and Zn/In bimetallic synergism can improve carrier transportation, including increasing carrier transportation, prolonging lifetime and decreasing recombination, the hollow core-shell nanostructure can provide abundant active sites and increase solar efficiency, while can maintain a photocatalytic stability.
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