Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    High performance, recoverable Fe3O4----ZnO nanoparticles for enhanced photocatalytic degradation of phenol

    Access Status
    Fulltext not available
    Authors
    Feng, Xiaohui
    Guo, H.
    Patel, Kunal
    Zhou, Hong
    Lou, Xia
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Feng, Xiaohui and Guo, Haijuan and Patel, Kunal and Zhou, Hong and Lou, Xia. 2014. High performance, recoverable Fe3O4----ZnO nanoparticles for enhanced photocatalytic degradation of phenol. Chemical Engineering Journal. 244: pp. 327-334.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2014.01.075
    ISSN
    1385-8947
    URI
    http://hdl.handle.net/20.500.11937/12928
    Collection
    • Curtin Research Publications
    Abstract

    In this paper, a novel type of magnetic photocatalyst, made of Fe3O4----ZnO hybrid nanoparticles, was prepared and characterized using various analytical instruments. Upon the degradation of phenol in water, the hybrid nanoparticles demonstrated significantly enhanced photocatalytic activity, achieving a phenol degradation efficiency of 82.3%, in comparison with that of 52% by the pure ZnO nanoparticles. A reduced photoluminescence in the hybrid nanoparticles revealed the suppressing effect of the hybrid nanoparticles on the recombination of photoinduced electron–hole pairs. A hypothesized reaction mechanism was presented, showing the possible presence of free iron ions that can act as an electron-trapping site to prevent the fast recombination of photogenerated charge carriers, therefore improving the photocatalytic properties. The stability and the recoverability of the hybrid nanoparticles were also investigated. A recovering yield of 89% was achieved. The strong photocatalytic activity was well maintained after three cyclic treatments, indicating both good recoverability and high performance of the novel photocatalyst. Photocorrosion caused loss of ZnO and Fe3O4 in the recycled hybrid nanoparticles was noticeable. Whilst the loss of ZnO might have led to the reduced photoreactivity of the recycled nanoparticles, the dissolution of iron ions could be critical for the enhanced overall photocatalytic properties of Fe3O4----ZnO.

    Related items

    Showing items related by title, author, creator and subject.

    • The effect of surfactants-bound magnetite (Fe3O4) on the photocatalytic properties of the heterogeneous magnetic zinc oxides nanoparticles
      Feng, Xiaohui; Lou, Xia (2015)
      The article reports the synthesis and characterisation of two new magnetite (Fe3O4)-supported zinc oxide (ZnO) photocatalysts, produced in the presence of Fe3O4 nanotemplates that were bound with tetramethylammonium (TMAH) ...
    • ZnFe2O4 multi-porous microbricks/graphene hybrid photocatalyst: Facile synthesis, improved activity and photocatalytic mechanism
      Hou, Y.; Li, Xin Yong; Zhao, Q.; Chen, G. (2013)
      Great efforts have been made recently to develop graphene-based visible-light-response photocatalysts and investigate their application in environmental field. In this study, a novel graphene-supported ZnFe2O4 multi-porous ...
    • Photocatalytic oxidation of phenolic compounds using zinc oxide and sulphate radicals under artificial solar light
      Shukla, Pradeep; Wang, Shaobin; Ang, Ming; Tade, Moses (2010)
      Photocatalytic degradation of phenolic compounds in aqueous solution was investigated in TiO2/persulphate/UV–vis and ZnO/persulphate/UV–vis light. It is found that ZnO exhibits higher activity than TiO2 in photocatalytic ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.