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Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems

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 l...

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Autores principales: Guo, Shaohui, Li, Xuanhua, Li, Ju, Wei, Bingqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7910610/
https://www.ncbi.nlm.nih.gov/pubmed/33637719
http://dx.doi.org/10.1038/s41467-021-21526-4
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author Guo, Shaohui
Li, Xuanhua
Li, Ju
Wei, Bingqing
author_facet Guo, Shaohui
Li, Xuanhua
Li, Ju
Wei, Bingqing
author_sort Guo, Shaohui
collection PubMed
description 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.
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spelling pubmed-79106102021-03-04 Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems Guo, Shaohui Li, Xuanhua Li, Ju Wei, Bingqing Nat Commun Article 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. Nature Publishing Group UK 2021-02-26 /pmc/articles/PMC7910610/ /pubmed/33637719 http://dx.doi.org/10.1038/s41467-021-21526-4 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Guo, Shaohui
Li, Xuanhua
Li, Ju
Wei, Bingqing
Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
title Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
title_full Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
title_fullStr Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
title_full_unstemmed Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
title_short Boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
title_sort boosting photocatalytic hydrogen production from water by photothermally induced biphase systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7910610/
https://www.ncbi.nlm.nih.gov/pubmed/33637719
http://dx.doi.org/10.1038/s41467-021-21526-4
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