IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v231y2024ics0960148124010656.html
   My bibliography  Save this article

Carbon quantum dot-modified TiO2/SrTiO3 heterojunction for boosting photocatalytic CO2 reduction

Author

Listed:
  • Wang, Qing-shan
  • Yuan, Yi-chao
  • Li, Chu-fan
  • Zhang, Zhen-rui
  • Xia, Cheng
  • Pan, Wei-guo
  • Liu, Lu
  • Guo, Rui-tang

Abstract

An efficient carbon quantum dot (CQD)-modified TiO2/SrTiO3 heterojunction was constructed for photocatalytic CO2 reduction in this paper. Photogenerated electrons of SrTiO3 transferred to TiO2 via the transfer channel of CQDs for electron-hole recombination, while the photogenerated electrons migrated from TiO2 to CQDs to participate in the photocatalytic CO2 reduction reaction. Meanwhile, the up-conversion of CQDs enhanced the light harvesting ability of the catalyst and the CQDs enriched the active reaction sites. Due to the above advantages, the CO and CH4 produce rate over 0.1-CTS reached 54.9 and 35.9 μmol g−1 h−1, respectively, which was dramatically increased compared with pure TiO2 and pure SrTiO3. This work proposes a feasible strategy for integrating CQDs with TiO2 and SrTiO3 for the optimistic cooperative effect to obtain an effective catalyst for photocatalytic CO2 reduction.

Suggested Citation

  • Wang, Qing-shan & Yuan, Yi-chao & Li, Chu-fan & Zhang, Zhen-rui & Xia, Cheng & Pan, Wei-guo & Liu, Lu & Guo, Rui-tang, 2024. "Carbon quantum dot-modified TiO2/SrTiO3 heterojunction for boosting photocatalytic CO2 reduction," Renewable Energy, Elsevier, vol. 231(C).
    • Handle: RePEc:eee:renene:v:231:y:2024:i:c:s0960148124010656
    DOI: 10.1016/j.renene.2024.120997
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148124010656
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2024.120997?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.

    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:231:y:2024:i:c:s0960148124010656. 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: 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.