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

    Removal of aqueous toxic Hg(II) by functionalized mesoporous silica materials

    Access Status
    Fulltext not available
    Authors
    Zhang, L.
    Goh, S.
    Hu, Xun
    Crawford, R.
    Yu, A.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhang, L. and Goh, S. and Hu, X. and Crawford, R. and Yu, A. 2012. Removal of aqueous toxic Hg(II) by functionalized mesoporous silica materials. Journal of Chemical Technology and Biotechnology. 87 (10): pp. 1473-1479.
    Source Title
    Journal of Chemical Technology and Biotechnology
    DOI
    10.1002/jctb.3771
    ISSN
    0268-2575
    School
    Fuels and Energy Technology Institute
    URI
    http://hdl.handle.net/20.500.11937/24858
    Collection
    • Curtin Research Publications
    Abstract

    Background: Hg(II) is one of the most toxic metals and has received particular attention in environmental pollution. Hg(II) pollution is common in water sources, so rapid and efficient methods must be developed for its removal from water samples. Mesoporous silica (MS) is an ideal adsorbent due to its high surface area and biocompatibility. The efficiency and selectivity of MS adsorbents can be improved by surface modification. Results: A new sorbent for trace Hg(II) removal was developed by grafting 1-(3-carboxyphenyl)-2-thiourea (CPTU) onto SBA-15 mesoporous silica. The optimum pH range for Hg(II) adsorption was 3-7 and the maximum static adsorption capacity was 64.5 mg g -1. An enrichment factor of 150 was obtained with a relative standard deviation < 1.5% (n = 8). Common coexisting ions did not interfere with the adsorption of Hg(II) under optimal conditions. Quantitative recovery was achieved by stripping with a mixed solution of 1 mol L -1 HCl and 5% CS(NH 2) 2. Efficient adsorption capacity of the recycled material could still be maintained at a level of 95% at the 7th cycle. Conclusion: 1-(3-carboxyphenyl)-2-thiourea functionalized SBA-15 mesoporous silica was synthesized and applied for Hg(II) removal from water samples with high efficiency and selectivity.

    Related items

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

    • Inorganic-organic based novel nano-conjugate material for effective cobalt(II) ions capturing from wastewater
      Awual, M.; Alharthi, N.; Hasan, M.; Karimd, M.; Islame, A.; Znad, Hussein; Hossain, M.; Halimh, M.; Rahman, M.; Khaleque, M. (2017)
      Simultaneous detection and removal of heavy metals with high sensitivity and adsorption capacity of a suitable material is an ultimate goal in industry for the purification of contaminated water samples. This study was ...
    • Comparison of dynamic adsorption/desorption characteristics of toluene on different porous materials
      Zhang, W.; Qu, Z.; Li, Xin Yong; Wang, Y.; Ma, D.; Wu, J. (2012)
      Four different types of adsorbents, SBA-15, MCM-41, NaY and SiO 2, were used to study the dynamic adsorption/desorption of toluene. To further investigate the influence of pore structure on its adsorption performance, two ...
    • Synthesis of mesoporous silicas and organosilicas under mild reaction medium
      Yang, Q.; Liu, Jian (2010)
      Mesoporous silicas have shown potential applications in catalysis, adsorption, separation and biotechnology. Recent years have witnessed rapid growth in the area of mesoporous silicas. Mesoporous silicas and organosilicas ...
    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.