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Nano Research 2024, 17(6): 5002-5010 https://doi.org/10.1007/s12274-024-6511-y
Research Article | Issue | Published: 29 February 2024

Rationally construction of atomic-precise interfacial charge transfer channel and strong build-in electric field in nanocluster-based Z-scheme heterojunctions with enhanced photocatalytic hydrogen production

Show Author's Information Qingtao Zhu,§,  Honglei Shen,§,  Chao Han,  Liu Huang,  Yanting Zhou,  Yuanxin Du( ),  Xi Kang( ),  Manzhou Zhu( )
Department of Materials Science and Engineering, Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, Hefei 230601, China

§ Qingtao Zhu and Honglei Shen contributed equally to this work.

Keywords:
photocatalytic hydrogen production, build-in electric field, interfacial charge transfer, atomically precise metal nanocluster, Z-scheme heterojunction
Topics:
PhotocatalysisPhotocatalytic activity
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Zhu Q, Shen H, Han C, et al. Rationally construction of atomic-precise interfacial charge transfer channel and strong build-in electric field in nanocluster-based Z-scheme heterojunctions with enhanced photocatalytic hydrogen production. Nano Research, 2024, 17(6): 5002-5010. https://doi.org/10.1007/s12274-024-6511-y
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Abstract Full text Electronic supplementary material About this article

The lack of effective charge transfer driving force and channel limits the electron directional migration in nanoclusters (NC)-based heterostructures, resulting in poor photocatalytic performance. Herein, a Z-scheme NC-based heterojunction (Pt1Ag28-BTT/CoP, BTT = 1,3,5-benzenetrithiol) with strong internal electric field is constructed via interfacial Co–S bond, which exhibits an absolutely superiority in photocatalytic performance with 24.89 mmol·h−1·g−1 H2 production rate, 25.77% apparent quantum yield at 420 nm, and ~ 100% activity retention in stability, compared with Pt1Ag28-BDT/CoP (BDT = 1,3-benzenedithiol), Ag29-BDT/CoP, and CoP. The enhanced catalytic performance is contributed by the dual modulation strategy of inner core and outer shell of NC, wherein, the center Pt single atom doping regulates the band structure of NC to match well with CoP, builds internal electric field, and then drives photogenerated electrons steering; the accurate surface S modification promotes the formation of Co–S atomic-precise interface channel for further high-efficient Z-scheme charge directional migration. This work opens a new avenue for designing NC-based heterojunction with matchable band structure and valid interfacial charge transfer.


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Electronic supplementary material
About this article

Rationally construction of atomic-precise interfacial charge transfer channel and strong build-in electric field in nanocluster-based Z-scheme heterojunctions with enhanced photocatalytic hydrogen production

Show Author's information Qingtao Zhu,§, Honglei Shen,§, Chao Han, Liu Huang, Yanting Zhou, Yuanxin Du( ), Xi Kang( ), Manzhou Zhu( )
Department of Materials Science and Engineering, Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, Hefei 230601, China

§ Qingtao Zhu and Honglei Shen contributed equally to this work.

Abstract

The lack of effective charge transfer driving force and channel limits the electron directional migration in nanoclusters (NC)-based heterostructures, resulting in poor photocatalytic performance. Herein, a Z-scheme NC-based heterojunction (Pt1Ag28-BTT/CoP, BTT = 1,3,5-benzenetrithiol) with strong internal electric field is constructed via interfacial Co–S bond, which exhibits an absolutely superiority in photocatalytic performance with 24.89 mmol·h−1·g−1 H2 production rate, 25.77% apparent quantum yield at 420 nm, and ~ 100% activity retention in stability, compared with Pt1Ag28-BDT/CoP (BDT = 1,3-benzenedithiol), Ag29-BDT/CoP, and CoP. The enhanced catalytic performance is contributed by the dual modulation strategy of inner core and outer shell of NC, wherein, the center Pt single atom doping regulates the band structure of NC to match well with CoP, builds internal electric field, and then drives photogenerated electrons steering; the accurate surface S modification promotes the formation of Co–S atomic-precise interface channel for further high-efficient Z-scheme charge directional migration. This work opens a new avenue for designing NC-based heterojunction with matchable band structure and valid interfacial charge transfer.

Keywords: photocatalytic hydrogen production, build-in electric field, interfacial charge transfer, atomically precise metal nanocluster, Z-scheme heterojunction

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Acknowledgements

Publication history

Received: 07 November 2023
Revised: 24 January 2024
Accepted: 25 January 2024
Published: 29 February 2024
Issue date: June 2024

Copyright

© Tsinghua University Press 2024

Acknowledgements

Acknowledgements

We acknowledge the financial support of the Natural Science research project of Universities in Anhui Province (No. KJ2021ZD0001), the Natural Science Foundation of Anhui Province (No. 2208085MB20), and the National Natural Science Foundation of China (No. 22101001).

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