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The enhanced photocatalytic hydrogen production of nickel-cobalt bimetals sulfide synergistic modified CdS nanorods with active facets

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  • Pan, Jiaqi
  • Li, Hongli
  • Li, Shi
  • Ou, Wei
  • Liu, Yanyan
  • Wang, Jingjing
  • Song, Changsheng
  • Zheng, Yingying
  • Li, Chaorong

Abstract

Nickel-cobalt bimetals sulfide synergistic modified CdS nanorods with active facets are fabricated by a simple continuously hydrothermal method, there, CdS nanorods are preliminarily fabricated by the hydrothermal method, and then Ni–Co–S nanoparticles are deposited on the surface of CdS nanorods. Evaluated by the photocatalytic hydrogen production, the photocatalytic performance of CdS/Ni–Co–S (∼6.56 mmol/g∙h) exhibits an obvious enhancement of about ∼240 folds than typical CdS. The main reasons for the HER enhancement are ascribed to that, the active facets can promote the photo-generated electron aggregating at surface to increase the HER activities, Pt-like behavior Ni–Co–S can promote the photo-generated electrons transferring/diffusing into the water, the small size of CdS nanorods and Ni–Co–S nanoparticles can provide sufficient HER active sites and shorten the transferring route, which can be supported by the electrochemical measurements.

Suggested Citation

  • Pan, Jiaqi & Li, Hongli & Li, Shi & Ou, Wei & Liu, Yanyan & Wang, Jingjing & Song, Changsheng & Zheng, Yingying & Li, Chaorong, 2020. "The enhanced photocatalytic hydrogen production of nickel-cobalt bimetals sulfide synergistic modified CdS nanorods with active facets," Renewable Energy, Elsevier, vol. 156(C), pages 469-477.
    • Handle: RePEc:eee:renene:v:156:y:2020:i:c:p:469-477
    DOI: 10.1016/j.renene.2020.04.053
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    References listed on IDEAS

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    1. Su, En-Chin & Huang, Bing-Shun & Liu, Chao-Chang & Wey, Ming-Yen, 2015. "Photocatalytic conversion of simulated EDTA wastewater to hydrogen by pH-resistant Pt/TiO2–activated carbon photocatalysts," Renewable Energy, Elsevier, vol. 75(C), pages 266-271.
    2. Wang, Chao & Bu, Enqi & Chen, Ying & Cheng, Zhengdong & Zhang, Jingtao & Shu, Riyang & Song, Qingbin, 2019. "Enhanced photoreforming hydrogen production: Pickering interfacial catalysis from a bio-derived biphasic system," Renewable Energy, Elsevier, vol. 134(C), pages 113-124.
    3. Markovskaya, Dina V. & Gribov, Evgenii N. & Kozlova, Ekaterina A. & Kozlov, Denis V. & Parmon, Valentin N., 2020. "Modification of sulfide-based photocatalyst with zinc- and nickel-containing compounds: Correlation between photocatalytic activity and photoelectrochemical parameters," Renewable Energy, Elsevier, vol. 151(C), pages 286-294.
    4. Wang, Peifang & Wu, Tengfei & Ao, Yanhui & Wang, Chao, 2019. "Fabrication of noble-metal-free CdS nanorods-carbon layer-cobalt phosphide multiple heterojunctions for efficient and robust photocatalyst hydrogen evolution under visible light irradiation," Renewable Energy, Elsevier, vol. 131(C), pages 180-186.
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    Cited by:

    1. Arturo de Risi & Gianpiero Colangelo & Marco Milanese, 2023. "Advanced Technologies for Green Hydrogen Production," Energies, MDPI, vol. 16(6), pages 1-4, March.
    2. Zhang, Heqing & Yu, Zebin & Jiang, Ronghua & Hou, Yanping & Huang, Jun & Zhu, Hongxiang & Yang, Fei & Li, Mingjie & Li, Fengyuan & Ran, Qi, 2021. "Metal organic frameworks constructed heterojunction with α-NiS-β-NiS/CdS: The effect of organic-ligand in UiO-66 for charge transfer of photocatalytic hydrogen evolution," Renewable Energy, Elsevier, vol. 168(C), pages 1112-1121.

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