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

    Enhanced photocatalytic activity for titanium dioxide by co-modifying with silica and fluorine

    Access Status
    Fulltext not available
    Authors
    Yang, S.
    Sun, C.
    Li, Xin Yong
    Gong, Z.
    Quan, X.
    Date
    2010
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Yang, S. and Sun, C. and Li, X.Y. and Gong, Z. and Quan, X. 2010. Enhanced photocatalytic activity for titanium dioxide by co-modifying with silica and fluorine. Journal of Hazardous Materials. 175 (1-3): pp. 258-266.
    Source Title
    Journal of Hazardous Materials
    DOI
    10.1016/j.jhazmat.2009.09.158
    ISSN
    0304-3894
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/22648
    Collection
    • Curtin Research Publications
    Abstract

    F-Si-co-modified TiO2 (FST) samples with different ratios of fluorine to titanium (RF) and silica to titanium (Rx), were successfully synthesized by ultrasound-assisted hydrolysis. The structure and properties of the as-prepared codoped titania were characterized by means of XRD, TEM, XPS, BET, UV-Vis diffuse reflectance spectra and ESR. XRD analysis showed that Si and F atoms prevented phase transition of anatase to rutile and suppressed the growth of titania crystalline. ESR results showed that the concentration of the active species ({radical dot}OH) on 1 % -FS T(Rx = 10 %) was higher than that on other FST samples and P25 titania. The improvement in photocatalytic activity relative to titania can be achieved by co-modifying fluorine and silica to fabricate FST composite material. The photocatalytic activity of FST powders for decomposition of methyl orange was affected by the content of fluorine and the content of silica. When the ratios of RF and Rx were 1 and 10%, respectively, 1 % -FS T(Rx = 10 %) shows the best among photocatalytic activity, which is much superior to P25 under UV-Vis irradiation. The possible reasons for the high photocatalytic activity of the FST powders were proposed in the paper. In addition, the stability of the FST powders in photocatalytic process was confirmed based on the XPS analysis. © 2009 Elsevier B.V. All rights reserved.

    Related items

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

    • Fabrication and photo-electrocatalytic properties of highly oriented titania nanotube arrays with {1 0 1} crystal face
      Hou, Y.; Li, Xin Yong; Liu, P.; Zou, X.; Chen, G.; Yue, P. (2009)
      Highly oriented titania nanotube (TN) arrays with {1 0 1} crystal face were prepared on the surface of titanium substrate by liquid chemical deposition method. The obtained titania samples were characterized by X-ray ...
    • Influence of surfactants on Fe2O3 nanostructure photoanode
      Memar, Amir; Phan, Chi; Tade, Moses (2012)
      Fe2O3 nanostructures photoanodes were prepared via sol-gel spin-coating method onto fluorine-doped tin oxide glass substrates using six different surfactants: polyethylene glycol (PEG-300), Triton X-100, pluronic F127, ...
    • SIMS microanalysis of the Strelley Pool Formation cherts and the implications for the secular-temporal oxygen-isotope trend of cherts
      Cammack, J.; Spicuzza, M.; Cavosie, Aaron; Van Kranendonk, M.; Hickman, A.; Kozdon, R.; Orland, I.; Kitajima, K.; Valley, J. (2018)
      The significance of oxygen isotope ratios in Archean chert has long been debated. Cherts from the c. 3.4 Ga Strelley Pool Formation (SPF) (Pilbara Craton, Western Australia) host some of the oldest stromatolite and ...
    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.