IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v127y2018icp524-530.html
   My bibliography  Save this article

A ternary hybrid CdS/SiO2/TiO2 photoanode with enhanced photoelectrochemical activity

Author

Listed:
  • Li, Lin
  • Chen, Rong
  • Zhu, Xun
  • Liao, Qiang
  • Ye, Dingding
  • Zhang, Biao
  • He, Xuefeng
  • Jiao, Long
  • Feng, Hao
  • Zhang, Wei

Abstract

In this study, a novel ternary hybrid CdS/SiO2/TiO2 film was proposed as the phonoanode for the photocatalytic fuel cell. The samples were characterized by X-ray diffraction, scanning electron microscopy and UV–vis absorption. The photoelectrochemical activity of the ternary hybrid electrode was characterized by the photocurrent-time transient response, linear sweep voltammetry and electrochemical impedance spectroscopy. It was shown that CdS/SiO2/TiO2 yielded much higher photoelectrochemical activity than CdS/TiO2 and bare TiO2 did. The photoanode with CdS/SiO2/TiO2 showed the highest photocurrent density of 4.6 mA cm−2, exhibiting a 40% improvement over the conventional CdS/TiO2 photoanode. The roles of SiO2 and CdS in such a ternary configuration were elaborated. It was demonstrated that CdS could act as an excellent visible light captaturer to generate photo-induced charge carriers, and SiO2 as a passivation layer to suppress the interfacial recombination of electrons and holes. Moreover, SiO2 could allow for more CdS to be deposited at the photoanode owing to its high adsorption capacity. In addition, the effects of the SiO2 content and the SILAR cycle time on the performance of the CdS/SiO2/TiO2 photoanode were investigated. An optimal SiO2 content of 10% could yield the best performance. Increasing the SILAR cycle time could improve the photoelectrochemical activity.

Suggested Citation

  • Li, Lin & Chen, Rong & Zhu, Xun & Liao, Qiang & Ye, Dingding & Zhang, Biao & He, Xuefeng & Jiao, Long & Feng, Hao & Zhang, Wei, 2018. "A ternary hybrid CdS/SiO2/TiO2 photoanode with enhanced photoelectrochemical activity," Renewable Energy, Elsevier, vol. 127(C), pages 524-530.
    • Handle: RePEc:eee:renene:v:127:y:2018:i:c:p:524-530
    DOI: 10.1016/j.renene.2018.05.019
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S096014811830538X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2018.05.019?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. Mojaddami, Majdoddin & Simchi, Abdolreza, 2020. "Robust water splitting on staggered gap heterojunctions based on WO3∖WS2–MoS2 nanostructures," Renewable Energy, Elsevier, vol. 162(C), pages 504-512.
    2. Wang, Tao & Liu, Xiqing & Men, Qiuyue & Ma, Changchang & Liu, Yang & Huo, Pengwei & Yan, Yongsheng, 2020. "A Z-scheme TiO2 quantum dots fragment-Bi12TiO20 composites for enhancing photocatalytic activity," Renewable Energy, Elsevier, vol. 147(P1), pages 856-863.
    3. Hari Bhakta Oli & Allison A. Kim & Mira Park & Deval Prasad Bhattarai & Bishweshwar Pant, 2022. "Photocatalytic Fuel Cells for Simultaneous Wastewater Treatment and Power Generation: Mechanisms, Challenges, and Future Prospects," Energies, MDPI, vol. 15(9), pages 1-18, April.

    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:127:y:2018:i:c:p:524-530. 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.