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 flux electroneutral loose nanofiltration membranes based on rapid deposition of polydopamine/polyethyleneimine

    Access Status
    Fulltext not available
    Authors
    Wang, J.
    Zhu, J.
    Tsehaye, M.
    Li, J.
    Dong, G.
    Yuan, S.
    Li, X.
    Zhang, Y.
    Liu, Jian
    Van Der Bruggen, B.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wang, J. and Zhu, J. and Tsehaye, M. and Li, J. and Dong, G. and Yuan, S. and Li, X. et al. 2017. High flux electroneutral loose nanofiltration membranes based on rapid deposition of polydopamine/polyethyleneimine. Journal of Materials Chemistry A. 5 (28): pp. 14847-14857.
    Source Title
    Journal of Materials Chemistry A
    DOI
    10.1039/c7ta02661g
    ISSN
    2050-7488
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/70869
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 The Royal Society of Chemistry. A rational manipulation of the surface structures and properties of thin-film composite membranes is important to optimize their separation performance and service durability. In this study, a facile strategy is reported for fabricating electroneutral loose nanofiltration membranes based on the rapid co-deposition of biomimetic adhesive polydopamine and poly(ethylene imine) (PEI) by using CuSO4/H2O2as a trigger. Through this strategy, the surface properties and the filtration performance of the membranes can be easily tailored by the addition of PEI and CuSO4/H2O2, as well as tuning the deposition time. UV, XPS, SEM, AFM, zeta potential, water contact angle and nanofiltration measurements were used to investigate membrane performance. Surface characterization revealed that overall enhanced surface properties including low roughness, favourable hydrophilicity, and relatively neutral charge can be achieved after the addition of PEI. The optimum membranes, with 1 h co-deposition of PDA and PEI, show an ultrahigh water permeability (26.2 L m-2h-1bar-1), distinguished rejection for both negatively and positively charged dyes and a high permeation of divalent salts (>90%). Furthermore, the optimum membranes also show excellent operational stability in long-term nanofiltration operations in alkaline solution. This study provides an efficient and facile approach to tailor the membrane properties and structure for loose nanofiltration membranes.

    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 ...
    • Fabrication of a novel "loose" nanofiltration membrane by facile blending with Chitosan-Montmorillonite nanosheets for dyes purification
      Zhu, J.; Tian, M.; Zhang, Y.; Zhang, H.; Liu, Jian (2015)
      © 2014 Elsevier B.V. The novel hybrid material, clay/polymer nanocomposite has represented a desired alternative for designing the mixed matrix membranes (MMMs) due to their excellent overall performance, such as good ...
    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.