IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v164y2021icp531-540.html
   My bibliography  Save this article

Incorporation of π-conjugated molecules as electron donors in g-C3N4 enhances photocatalytic H2-production

Author

Listed:
  • Jiang, Runren
  • Lu, Guanghua
  • Liu, Jianchao
  • Wu, Donghai
  • Yan, Zhenhua
  • Wang, Yonghua

Abstract

Reinforcing migration of charge carrier in g-C3N4 photocatalytic system is critical for photocatalytic H2 evolution. Herein, we constructed a benzene-ring-incorporated g-C3N4 by copolymerization of urea with N-phenylthiourea. A π electron donor-acceptor conjugated structure is formed in which benzene ring is the donor while triazine ring is the acceptor. It is noteworthy that ultrafast transient absorption spectroscopy and density functional theory calculation were applied to gain more insight into the properties of the benzene ring with g-C3N4 as the electron donor in the triazine ring. As expected, the introduction of the benzene ring into triazine ring of the g-C3N4 displayed extraordinarily aggrandized hydrogen evolution, which not only crucially modified the π electronic structures and promote π-electron availability, but also played the role of a donor to improve the electron-hole separation. This study revealed that the photocatalytic H2 evolution of the donor-acceptor system can be further improved by inserting suitable π-conjugated as one of the units.

Suggested Citation

  • Jiang, Runren & Lu, Guanghua & Liu, Jianchao & Wu, Donghai & Yan, Zhenhua & Wang, Yonghua, 2021. "Incorporation of π-conjugated molecules as electron donors in g-C3N4 enhances photocatalytic H2-production," Renewable Energy, Elsevier, vol. 164(C), pages 531-540.
  • Handle: RePEc:eee:renene:v:164:y:2021:i:c:p:531-540
    DOI: 10.1016/j.renene.2020.09.040
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148120314609
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.renene.2020.09.040?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.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Chen, Ruijie & Zhang, Zhiqiang & Wu, Jun & Chen, Xueru & Wang, Lei & Yin, Haotian & Li, Hongping & Ding, Jing & Wan, Hui & Guan, Guofeng, 2022. "“Carbon diffusion” engineered carbon nitride nanosheets for high-efficiency photocatalytic solar-to-fuels conversion," Renewable Energy, Elsevier, vol. 197(C), pages 943-952.
    2. Sun, Zhen & Wang, Junxiang & Lu, Sen & Zhang, Guan, 2022. "Enzymatic biomass hydrolysis assisted photocatalytic H2 production from water employing porous carbon doped brookite/anatase heterophase titania photocatalyst," Renewable Energy, Elsevier, vol. 197(C), pages 151-160.

    More about this item

    Keywords

    g-C3N4; π-conjugated; Donor-acceptor; Benzene ring; Photocatalytic H2 evolution;
    All these keywords.

    JEL classification:

    • H2 - Public Economics - - Taxation, Subsidies, and Revenue

    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:eee:renene:v:164:y:2021:i:c:p:531-540. 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.