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

    Microwave-assisted synthesis of multi-walled carbon nanotubes for enhanced removal of Zn(II) from wastewater

    Access Status
    Fulltext not available
    Authors
    Mujawar, Mubarak
    Sahu, J.
    Abdullah, E.
    Jayakumar, N.
    Ganesan, P.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Mujawar, M. and Sahu, J. and Abdullah, E. and Jayakumar, N. and Ganesan, P. 2016. Microwave-assisted synthesis of multi-walled carbon nanotubes for enhanced removal of Zn(II) from wastewater. Research on Chemicals Intermediates. 42 (4): pp. 3257-3281.
    Source Title
    Research on Chemicals Intermediates
    DOI
    10.1007/s11164-015-2209-9
    ISSN
    0922-6168
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/50145
    Collection
    • Curtin Research Publications
    Abstract

    Removal of toxic metals is one of the biggest challenges in ensuring safe water for all as well as protecting the environment. Novel multi-walled carbon nanotubes (MCNTs) have been successfully synthesised by microwave techniques and improved to be an outstanding adsorbent for the removal of Zn(II) from wastewater. The adsorption of Zn(II) was studied and optimized as a function of pH, initial Zn(II) concentration, MCNT dosage, agitation speed, and adsorption time. In order to investigate the dynamic behavior of MCNTs as an adsorbent, the kinetic data were modeled using pseudo-first-order and second-order kinetic models. Different thermodynamic parameters, viz., ∆H°, ∆S° and ∆G° have also been evaluated and it has been found that the adsorption was feasible, spontaneous and endothermic in nature. Statistical analysis reveals that the optimum conditions for the highest removal (99.9 %) of Zn(II) are at pH 10, a MCNT dosage 0.05 g, an agitation speed and time of 160 rpm and 60 min, respectively, with an initial concentration of 10 mg/L. On the basis of the Langmuir model, qm was calculated to be 90.9 mg/g for microwave-synthesized MCNTs. Our results proved that MCNTs can be used as an effective Zn(II) adsorbent due to their high adsorption capacity as well as the short adsorption time needed to achieve equilibrium. Hence, MCNTs serve an important role in the removal of heavy metals from wastewater.

    Related items

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

    • Acid mine drainage (AMD) treatment: Neutralization and toxic elements removal with unmodified and modified limestone
      Iakovleva, E.; Mäkilä, E.; Salonen, J.; Sitarz, M.; Wang, Shaobin; Sillanpää, M. (2014)
      Limestones and their modifications from Nordkalk Corporation (Finland) flotation fines (FF) and filter sand (FS) as potential adsorbents for AMD treatment and wastewater purification from Cu, Fe, Zn and Ni ions were ...
    • Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II)
      Zhang, L.; Hu, Xun; Yu, C.; Crawford, R.; Yu, A. (2013)
      A new solid phase extractant, sinapinaldehyde (SA) modified SBA-15 mesoporous silica, was developed for selective extraction and preconcentration of trace Pb(II) from aqueous solutions. The successful immobilization of ...
    • Removal of ZN (II) Metal Ions From Aqueous Solution By Aluminium Oxide (AL2 O3): A Kinetic And Equilibrium Study
      Sen, Tushar; Mei, C. (2012)
      In this work the adsorptive properties of aluminium oxide in the removal of zinc (Zn2+) from aqueous solution have been studied by laboratory batch adsorption kinetic and equilibrium experiments.The results show that the ...
    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.