Guo, ShaohuiLi, XuanhuaLi, JuWei, Bingqing2023-12-052023-12-052021-02-26Guo, S., Li, X., Li, J. et al. Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems. Nat Commun 12, 1343 (2021). https://doi.org/10.1038/s41467-021-21526-42041-1723https://udspace.udel.edu/handle/19716/33650This article was originally published in Nature Communications. The version of record is available at: https://doi.org/10.1038/s41467-021-21526-4. © The Author(s) 2021Solar-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.en-USAttribution 4.0 Internationalhydrogen energynanoscale materialsphotocatalysissolar thermal energyaffordable and clean energyArticle