IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-25261-8.html
   My bibliography  Save this article

Anion-exchange-mediated internal electric field for boosting photogenerated carrier separation and utilization

Author

Listed:
  • Tong Han

    (Tsinghua University)

  • Xing Cao

    (Tsinghua University)

  • Kaian Sun

    (Tsinghua University)

  • Qing Peng

    (Tsinghua University)

  • Chenliang Ye

    (Tsinghua University)

  • Aijian Huang

    (Tsinghua University)

  • Weng-Chon Cheong

    (Faculty of Science and Technology, University of Macau)

  • Zheng Chen

    (Anhui Normal University)

  • Rui Lin

    (Ludwig-Maximilians-Universität München)

  • Di Zhao

    (School of Chemistry and Chemical Engineering, Beijing Institute of Technology)

  • Xin Tan

    (Tsinghua University)

  • Zewen Zhuang

    (Tsinghua University)

  • Chen Chen

    (Tsinghua University)

  • Dingsheng Wang

    (Tsinghua University)

  • Yadong Li

    (Tsinghua University)

Abstract

Heterojunctions modulated internal electric field (IEF) usually result in suboptimal efficiencies in carrier separation and utilization because of the narrow IEF distribution and long migration paths of photocarriers. In this work, we report distinctive bismuth oxyhydroxide compound nanorods (denoted as BOH NRs) featuring surface-exposed open channels and a simple chemical composition; by simply modifying the bulk anion layers to overcome the limitations of heterojunctions, the bulk IEF could be readily modulated. Benefiting from the unique crystal structure and the localization of valence electrons, the bulk IEF intensity increases with the atomic number of introduced halide anions. Therefore, A low exchange ratio (~10%) with halide anions (I–, Br–, Cl–) gives rise to a prominent elevation in carrier separation efficiency and better photocatalytic performance for benzylamine coupling oxidation. Here, our work offers new insights into the design and optimization of semiconductor photocatalysts.

Suggested Citation

  • Tong Han & Xing Cao & Kaian Sun & Qing Peng & Chenliang Ye & Aijian Huang & Weng-Chon Cheong & Zheng Chen & Rui Lin & Di Zhao & Xin Tan & Zewen Zhuang & Chen Chen & Dingsheng Wang & Yadong Li, 2021. "Anion-exchange-mediated internal electric field for boosting photogenerated carrier separation and utilization," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25261-8
    DOI: 10.1038/s41467-021-25261-8
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-25261-8
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-25261-8?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
    ---><---

    More about this item

    Statistics

    Access and download statistics

    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:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25261-8. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    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.