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Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems

Author

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  • Shaohui Guo

    (Northwestern Polytechnical University)

  • Xuanhua Li

    (Northwestern Polytechnical University)

  • Ju Li

    (Massachusetts Institute of Technology)

  • Bingqing Wei

    (University of Delaware)

Abstract

Solar-driven hydrogen production from water using particulate photocatalysts is considered the most economical and effective approach to produce hydrogen fuel with little environmental concern. However, the efficiency of hydrogen production from water in particulate photocatalysis systems is still low. Here, we propose an efficient biphase photocatalytic system composed of integrated photothermal–photocatalytic materials that use charred wood substrates to convert liquid water to water steam, simultaneously splitting hydrogen under light illumination without additional energy. The photothermal–photocatalytic system exhibits biphase interfaces of photothermally-generated steam/photocatalyst/hydrogen, which significantly reduce the interface barrier and drastically lower the transport resistance of the hydrogen gas by nearly two orders of magnitude. In this work, an impressive hydrogen production rate up to 220.74 μmol h−1 cm−2 in the particulate photocatalytic systems has been achieved based on the wood/CoO system, demonstrating that the photothermal–photocatalytic biphase system is cost-effective and greatly advantageous for practical applications.

Suggested Citation

  • Shaohui Guo & Xuanhua Li & Ju Li & Bingqing Wei, 2021. "Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21526-4
    DOI: 10.1038/s41467-021-21526-4
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    Cited by:

    1. Xu Xin & Youzi Zhang & Ruiling Wang & Yijin Wang & Peng Guo & Xuanhua Li, 2023. "Hydrovoltaic effect-enhanced photocatalysis by polyacrylic acid/cobaltous oxide–nitrogen doped carbon system for efficient photocatalytic water splitting," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Sharma, Rishabh & Almáši, Miroslav & Nehra, Satya Pal & Rao, Vikrant Singh & Panchal, Priyanka & Paul, Devina Rattan & Jain, Indra Prabh & Sharma, Anshu, 2022. "Photocatalytic hydrogen production using graphitic carbon nitride (GCN): A precise review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).
    3. Guanhua Ren & Min Zhou & Peijun Hu & Jian-Fu Chen & Haifeng Wang, 2024. "Bubble-water/catalyst triphase interface microenvironment accelerates photocatalytic OER via optimizing semi-hydrophobic OH radical," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    4. Wei Wang & Qun Song & Qiang Luo & Linqian Li & Xiaobing Huo & Shipeng Chen & Jinyang Li & Yunhong Li & Se Shi & Yihui Yuan & Xiwen Du & Kai Zhang & Ning Wang, 2023. "Photothermal-enabled single-atom catalysts for high-efficiency hydrogen peroxide photosynthesis from natural seawater," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    5. Cruz, Pedro L. & Dufour, Javier & Iribarren, Diego, 2023. "Conceptualization and application of an environmental dashboard to benchmark technical aspects in photocatalytic hydrogen production," Renewable Energy, Elsevier, vol. 210(C), pages 424-430.

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