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Visible-light driven S-scheme Mn0.2Cd0.8S/CoTiO3 heterojunction for photocatalytic hydrogen evolution

Author

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  • Liu, Tianxia
  • Yang, Kaicheng
  • Gong, Haiming
  • Jin, Zhiliang

Abstract

A novel S-scheme Mn0.2Cd0.8S/CoTiO3 photocatalytic system was formed. The morphology, microstructure, chemical state and optical behavior of Mn0.2Cd0.8S/CoTiO3 have been studied using SEM, XRD, TEM, UV–vis, PL and TRPL techniques, which proves that the existence of the S-scheme heterojunction accelerates the transfer of photogenerated carriers and the ability to capture and utilize visible light. The electrochemical test proved that the composite sample greatly reduces the overpotential of the hydrogen evolution reaction, thereby achieving ultra-high hydrogen evolution. In addition, the feasible mechanism of photocatalytic hydrogen evolution is described. This work will furnish fresh insights for the conception and construction of efficient binary heterojunction photocatalysts.

Suggested Citation

  • Liu, Tianxia & Yang, Kaicheng & Gong, Haiming & Jin, Zhiliang, 2021. "Visible-light driven S-scheme Mn0.2Cd0.8S/CoTiO3 heterojunction for photocatalytic hydrogen evolution," Renewable Energy, Elsevier, vol. 173(C), pages 389-400.
    • Handle: RePEc:eee:renene:v:173:y:2021:i:c:p:389-400
    DOI: 10.1016/j.renene.2021.03.146
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    Cited by:

    1. Ding, Qun & Zou, Xuejun & Ke, Jun & Dong, Yuying & Cui, Yubo & Lu, Guang & Ma, Hongchao, 2023. "S-scheme 3D/2D NiCo2O4@g-C3N4 hybridized system for boosting hydrogen production from water splitting," Renewable Energy, Elsevier, vol. 203(C), pages 677-685.
    2. Jin, Zhiliang & Jiang, Xudong & Liu, Yanan, 2022. "Graphdiyne(CnH2n-2) based NiS S-scheme heterojunction for efficient photocatalytic hydrogen production," Renewable Energy, Elsevier, vol. 201(P1), pages 854-863.
    3. Belessiotis, George V. & Kontos, Athanassios G., 2022. "Plasmonic silver (Ag)-based photocatalysts for H2 production and CO2 conversion: Review, analysis and perspectives," Renewable Energy, Elsevier, vol. 195(C), pages 497-515.

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