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

    A negatively charged loose nanofiltration membrane by blending with poly (sodium 4-styrene sulfonate) grafted SiO2via SI-ATRP for dye purification

    Access Status
    Fulltext not available
    Authors
    Xing, L.
    Guo, N.
    Zhang, Y.
    Zhang, H.
    Liu, Jian
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Xing, L. and Guo, N. and Zhang, Y. and Zhang, H. and Liu, J. 2015. A negatively charged loose nanofiltration membrane by blending with poly (sodium 4-styrene sulfonate) grafted SiO2via SI-ATRP for dye purification. Separation and Purification Technology. 146: pp. 50-59.
    Source Title
    Separation and Purification Technology
    DOI
    10.1016/j.seppur.2015.03.030
    ISSN
    1383-5866
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/72825
    Collection
    • Curtin Research Publications
    Abstract

    © 2015 Elsevier B.V. All rights reserved. Silica spheres in nanoscale were prepared via sol-gel method and then sodium 4-styrene sulfonate was grafted onto the surfaces of SiO2(PSS-SiO2) by surface-initiated atom transfer radical polymerization (SI-ATRP). Then, a negatively charged loose SiO2-PSS/polyethersulfone (PES) nanofiltration membrane with high flux was fabricated via phase inversion method. FT-IR and TEM results showed that SiO2nanoparticles were synthesized and modified successfully. GPC results further proved the "living"/controlled behavior of SI-ATRP. The morphology, hydrophilicity of the membranes were investigated by SEM, static water contact angle and water ratio. The results revealed that the surface hydrophilicity and water permeability of hybrid membranes were greatly improved after adding SiO2-PSS and thus may enhance fouling resistance to a certain extent. The salt permeation and separation of dye/salt mixture of the hybrid membranes were significantly superior to the pure PES membrane, and the order of permeation for different salt solutions was NaCl > MgCl2> MgSO4> Na2SO4. When the content of SiO2-PSS was 3.0 wt%, the hybrid membrane showed optimal performance with IEC value of 0.07 mmol/g and pure water flux of 269.5 L m-2h-1and the rejections for all types of salts declined to under 11%. The above results indicated that SiO2-PSS incorporated into PES matrix played an important role in enhancing the performance of NF membranes, which may possess a significant impact on the application in dye purification and desalination.

    Related items

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

    • Synthesis of polymeric nanocomposite membranes for aqueous and non-aqueous media
      Rajaeian, Babak (2012)
      Thin film composite (TFC) membranes have long been used by many large-scale applications (i.e., water and wastewater treatment). Recently, conventional polymeric TFC membranes are facing with short longevity due to high ...
    • Improved Salts Transportation of a Positively Charged Loose Nanofiltration Membrane by Introduction of Poly(ionic liquid) Functionalized Hydrotalcite Nanosheets
      Yu, L.; Deng, J.; Wang, H.; Liu, Jian; Zhang, Y. (2016)
      © 2016 American Chemical Society. Basically, commercialized nanofiltration membranes exhibit a salt (NaCl) rejection of >30%, which are difficult to accomplish the separation of low-molecular-weight organics from their ...
    • Zwitterionic functionalized layered double hydroxides nanosheets for a novel charged mosaic membrane with high salt permeability
      Wang, J.; Zhang, Y.; Zhu, J.; Hou, J.; Liu, Jian; Van der Bruggen, B. (2016)
      © 2016 Elsevier B.V.. Charged mosaic membranes containing equivalent cationic and anionic exchange capacities are capable of decreasing the Donnan effect and thus accelerating salts permeation, while maintaining a high ...
    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.