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Synthesis of ZnIn2S4@Co3S4 particles derived from ZIF-67 for photocatalytic hydrogen production.

ABSTRACT: In this work, ZIF-67 derivative Co3S4 with diamond dodecahedron structure was firstly synthesized via a series of reactions, and ZnIn2S4@Co3S4 heterostructures with adjustable band gaps were successfully obtained through a simple hydrothermal method. Consequently, ZnIn2S4@Co3S4 heterostructures have significantly enhanced visible light absorption and improved photocatalytic efficiency, among which the ZC-5 composite exhibits the highest photocatalytic hydrogen production rate up to 4261 μmol g-1 h-1 under simulated sunlight, to be approximately 4.8 times higher than that of pure ZnIn2S4. The enhanced photocatalytic activity can be attributed to faster electron transfer and more efficient electron-hole pairs separation derived from the heterostructures which form at the interface between Co3S4 and ZnIn2S4. Thus, this study provides a good strategy for photocatalytic hydrogen production without precious metals using heterostructures.

SUBMITTER: Wang G 

PROVIDER: S-EPMC8695302 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Synthesis of ZnIn<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>S<sub>4</sub> particles derived from ZIF-67 for photocatalytic hydrogen production.

Wang Ganyu G   Chen Wenqian W   Zhang Yu Y   Xu Qinshang Q   Li Yirui Y   Foo Maw Lin ML   Tang Liang L  

RSC advances 20210301 16

In this work, ZIF-67 derivative Co<sub>3</sub>S<sub>4</sub> with diamond dodecahedron structure was firstly synthesized <i>via</i> a series of reactions, and ZnIn<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>S<sub>4</sub> heterostructures with adjustable band gaps were successfully obtained through a simple hydrothermal method. Consequently, ZnIn<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>S<sub>4</sub> heterostructures have significantly enhanced visible light absorption and improved photocatalytic effici  ...[more]

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