IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v245y2025ics0960148125005087.html
   My bibliography  Save this article

Separation of oxidation and reduction sites on Zn0.3Cd0.7S for efficient photocatalytic hydrogen production

Author

Listed:
  • Wang, Jingzhi
  • Wang, Haiyu
  • Li, Mei
  • Zhao, Nini
  • Li, Youji
  • Jin, Zhiliang

Abstract

Separation of redox sites is one of the methods to control the directional separation of photogenerated charges and improve photocatalytic activity. Herein, we constructed a novel system that integrating Ti3C2Tx, Zn0.3Cd0.7S (ZCS) and CoP for efficient photocatalytic hydrogen production. The hydrogen production rate of this system can reach 9.67 mmol g−1 h−1, with long-term stability of 20 h. The results show that Ti3C2Tx has smallest (work function (Wf)) compared with ZCS and CoP, resulting in the formation of ohmic contact between Ti3C2Tx and ZCS, and Schottky contact between CoP and ZCS. The presence of the Schottky barrier and the built-in electric field leads to a continuous transfer and accumulation of electrons from ZCS to CoP, which then undergoes a reduction reaction with hydrogen ions adsorbed on the surface to generate hydrogen gas and desorb it. The holes in Ti3C2Tx are consumed by sacrificial reagents, allowing effective separation oxidation and reduction sites. Interestingly, there is almost no potential barrier in the Ohmic contact, which still drives the charge transfer from Ti3C2Tx to ZCS. This article presents a new method to regulate charge mobility, namely redox site separation, which helps to achieve better photocatalytic activity.

Suggested Citation

  • Wang, Jingzhi & Wang, Haiyu & Li, Mei & Zhao, Nini & Li, Youji & Jin, Zhiliang, 2025. "Separation of oxidation and reduction sites on Zn0.3Cd0.7S for efficient photocatalytic hydrogen production," Renewable Energy, Elsevier, vol. 245(C).
    • Handle: RePEc:eee:renene:v:245:y:2025:i:c:s0960148125005087
    DOI: 10.1016/j.renene.2025.122846
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148125005087
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2025.122846?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Xin Wang & Boyan Liu & Siqing Ma & Yingjuan Zhang & Lianzhou Wang & Gangqiang Zhu & Wei Huang & Songcan Wang, 2024. "Induced dipole moments in amorphous ZnCdS catalysts facilitate photocatalytic H2 evolution," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Wei Shi & Jiayi Li & Fei Gao & Lijun Meng & Xiao Su & Zhiwei Wang, 2024. "Strongly coordinating mediator enables single-step resource recovery from heavy metal-organic complexes in wastewater," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:245:y:2025:i:c:s0960148125005087. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.