IDEAS home Printed from https://ideas.repec.org/a/wsi/srlxxx/v26y2019i05ns0218625x18501962.html
   My bibliography  Save this article

PHOTOCATALYTIC PROPERTY AND PHOTOCATALYTIC MECHANISM OF TiO2/Fe2O3 HYBRIDS FOR DEGRADATION OF ORGANIC DYES

Author

Listed:
  • CHUANSHENG CHEN

    (College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China)

  • QUN FANG

    (College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China)

  • SHIYI CAO

    (College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China)

  • YONGXIANG YAN

    (College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China)

Abstract

In order to consider the performance enhancement and feasibility of practical application, this research work discussed the effects of different ions on the photocatalytic activity of TiO2/Fe2O3 hybrids in detail, involving H+, OH−, NH4+, and NO3−. The TiO2/Fe2O3 hybrids were prepared by organic electrolyte-assisted sol–gel method under UV irradiation, and their function mechanisms were analyzed. Experiment results show that the resultant TiO2/Fe2O3 hybrids possess excellent photocatalytic activity and photocatalytic stability for degradation of organics under acid condition (pH 2–8). Notably, the NO3− ions could accelerate degradation of rhodamine B and methyl orange, and the recyclability of TiO2/Fe2O3 hybrids can be greatly enhanced in the co-existence of NO3− and NH4+. Meanwhile, this symbiosis of NO3− and NH4+ is proven able to buffer the solution pH in photocatalysis. Furthermore, the prominent photocatalytic activity of TiO2/Fe2O3 hybrids for organic pollutants was mainly attributed to the formation of hydroxyl radicals (OH). The synthetic products show great potential applications in purification of air or wastewater that contains ammonia-nitrogen molecules.

Suggested Citation

  • Chuansheng Chen & Qun Fang & Shiyi Cao & Yongxiang Yan, 2019. "PHOTOCATALYTIC PROPERTY AND PHOTOCATALYTIC MECHANISM OF TiO2/Fe2O3 HYBRIDS FOR DEGRADATION OF ORGANIC DYES," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 26(05), pages 1-13, June.
    • Handle: RePEc:wsi:srlxxx:v:26:y:2019:i:05:n:s0218625x18501962
    DOI: 10.1142/S0218625X18501962
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0218625X18501962
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0218625X18501962?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

    for a different version of it.

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    JEL classification:

    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:wsi:srlxxx:v:26:y:2019:i:05:n:s0218625x18501962. 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: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .

    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.