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The photocatalytic hydrogen evolution enhancement of the MoS2 lamellas modified g-C3N4/SrTiO3 core-shell heterojunction

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

Abstract

The MoS2 lamellas modified g-C3N4/SrTiO3 core-shell heterojunction is prepared via a simple continuous hydrothermal-annealing method. There, the g-C3N4 shell is deposited on the surface of as-prepared SrTiO3 nanosphere, and then the MoS2 lamellas grow on the surface of core-shell heterojunction. Evaluated by the hydrogen evolution, the as-prepared MoS2/g-C3N4/SrTiO3 core-shell heterojunction exhibits an obvious photocatalytic enhancement of about ∼30 folds than single SrTiO3 nanospheres, which can be mainly ascribed to that, the core-shell heterojunction can promote the charge carriers separation efficiently and the Pt-like behavior MoS2 can promote the photo-generated electrons diffusing into water quickly. Additionally, the ultrathin MoS2 lamellas with a mass of edge S atoms can provide sufficient HER active sites and shorten photoelectron transport route to improve photocatalytic stability.

Suggested Citation

  • Pan, Jiaqi & Liu, Yanyan & Ou, Wei & Li, Shi & Li, Hongli & Wang, Jingjing & Song, Changsheng & Zheng, Yingying & Li, Chaorong, 2020. "The photocatalytic hydrogen evolution enhancement of the MoS2 lamellas modified g-C3N4/SrTiO3 core-shell heterojunction," Renewable Energy, Elsevier, vol. 161(C), pages 340-349.
    • Handle: RePEc:eee:renene:v:161:y:2020:i:c:p:340-349
    DOI: 10.1016/j.renene.2020.07.097
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    References listed on IDEAS

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    1. Yang, Lingyan & Liu, Jing & Yang, Liping & Zhang, Mei & Zhu, Hui & Wang, Fu & Yin, Jiao, 2020. "Co3O4 imbedded g-C3N4 heterojunction photocatalysts for visible-light-driven hydrogen evolution," Renewable Energy, Elsevier, vol. 145(C), pages 691-698.
    2. Mahzoon, Saeed & Haghighi, Mohammad & Nowee, Seyed Mostafa, 2020. "Sonoprecipitation fabrication of enhanced electron transfer Cu(OH)2/g-C3N4 nanophotocatalyst with promoted H2-Production activity under visible light irradiation," Renewable Energy, Elsevier, vol. 150(C), pages 91-100.
    3. 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.
    4. 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.
    5. Hu, Yuchao & Mao, Liuhao & Guan, Xiangjiu & Tucker, Kevin Andrew & Xie, Huling & Wu, Xuesong & Shi, Jinwen, 2020. "Layered perovskite oxides and their derivative nanosheets adopting different modification strategies towards better photocatalytic performance of water splitting," Renewable and Sustainable Energy Reviews, Elsevier, vol. 119(C).
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    Cited by:

    1. 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.

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