Efficient and stable n-type sulfide overall water splitting with separated hydrogen production

Luo, Haolin; Liu, Zhixi; Lv, Haifeng; Vequizo, Junie Jhon M.; Zheng, Mengting; Han, Feng; Ye, Zhen; Yamakata, Akira; Shangguan, Wenfeng; Lee, Adam F.; Wu, Xiaojun; Kazunari, Domen; Lu, Jun; Jiang, Zhi

doi:10.1038/s41467-025-63840-1

Permalink : https://ousar.lib.okayama-u.ac.jp/69805

ID	69805
フルテキストURL	fulltext.pdf 2.43 MB
著者	Luo, Haolin Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University Liu, Zhixi Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University Lv, Haifeng State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Material Sciences, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China Vequizo, Junie Jhon M. Institute of Aqua Regeneration, Shinshu University Zheng, Mengting College of Chemical and Biological Engineering, Zhejiang University Han, Feng Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University Ye, Zhen Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University Yamakata, Akira Faculty of Natural Science and Technology, Okayama University Shangguan, Wenfeng Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University Lee, Adam F. Centre for Catalysis and Clean Energy, School of Environment and Science, Griffith University Wu, Xiaojun State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Material Sciences, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China Kazunari, Domen Institute of Aqua Regeneration, Shinshu University Lu, Jun College of Chemical and Biological Engineering, Zhejiang University Jiang, Zhi Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University
抄録	N-type sulfide semiconductors are promising photocatalysts due to their broad visible-light absorption, facile synthesis and chemical diversity. However, photocorrosion and limited electron transport in one-step excitation and solid-state Z-scheme systems hinder efficient overall water splitting. Liquid-phase Z-schemes offer a viable alternative, but sluggish mediator kinetics and interfacial side reactions impede their construction. Here we report a stable Z-scheme system integrating n-type CdS and BiVO₄ with a [Fe(CN)₆]³⁻/[Fe(CN)₆]⁴⁻ mediator, achieving 10.2% apparent quantum yield at 450 nm with stoichiometric H₂/O₂ evolution. High activity reflects synergies between Pt@CrOx and Co3O4 cocatalysts on CdS, and cobalt-directed facet asymmetry in BiVO₄, resulting in matched kinetics for hydrogen and oxygen evolution in a reversible mediator solution. Stability is dramatically improved through coating CdS and BiVO4 with different oxides to inhibit Fe4[Fe(CN)6]3 precipitation and deactivation by a hitherto unrecognized mechanism. Separate hydrogen and oxygen production is also demonstrated in a two-compartment reactor under visible light and ambient conditions. This work unlocks the long-sought potential of n-type sulfides for efficient, durable and safe solar-driven hydrogen production.
発行日	2025-10-02
出版物タイトル	Nature Communications
巻	16巻
号	1号
出版者	Springer Science and Business Media LLC
開始ページ	8786
ISSN	2041-1723
資料タイプ	学術雑誌論文
言語	英語
OAI-PMH Set	岡山大学
著作権者	© The Author(s)
論文のバージョン	publisher
PubMed ID	41038830
DOI	10.1038/s41467-025-63840-1
Web of Science KeyUT	001586994200008
関連URL	isVersionOf https://doi.org/10.1038/s41467-025-63840-1
ライセンス	http://creativecommons.org/licenses/by-nc-nd/4.0/
Citation	Luo, H., Liu, Z., Lv, H. et al. Efficient and stable n-type sulfide overall water splitting with separated hydrogen production. Nat Commun 16, 8786 (2025). https://doi.org/10.1038/s41467-025-63840-1