A study on producing composite nanofiltration membranes with optimized properties

A. Wahab Mohammad, Nidal Hilal, M. Nizam Abu Seman

    Research output: Contribution to journalArticle

    Abstract

    In this study, we attempt to produce nanofiltration membranes with varying properties through interfacial polymerization technique. The properties include pore size, effective charge density and effective membrane thickness. The ability to use NF membranes with varying properties will improve overall process efficiency as shown in our previous study. The membranes produced were characterized using permeation experiments with water, salt and uncharged solute as well as imaging using atomic force microscopy (AFM). This study has shown that through interfacial polymerization technique, the variation of reaction time as well as monomer concentrations can affect the properties of the membrane produced. Increasing the reaction time resulted in decreasing water permeabilities but based on AFM imaging, the pore size was of similar value. Increasing the monomer concentration also resulted in decreasing water permeabilities. However, based on AFM imaging the pore size differs considerably. Additional permeation experiments and data interpretation with predictive model such as DSPM model allow further understanding of the variation of membrane properties. The ability to tailor made TFC membrane with the right properties will significantly improved processing efficiency.

    Original languageEnglish (US)
    Pages (from-to)73-78
    Number of pages6
    JournalDesalination
    Volume158
    Issue number1-3
    DOIs
    StatePublished - Aug 1 2003

    Fingerprint

    Nanofiltration membranes
    Composite membranes
    membrane
    Membranes
    atomic force microscopy
    Pore size
    Atomic force microscopy
    Imaging techniques
    Permeation
    polymerization
    Monomers
    Polymerization
    permeability
    Water
    Saline water
    Charge density
    data interpretation
    property rights
    salt water
    Experiments

    Keywords

    • Atomic force microscopy
    • Characteristics
    • Nanofiltration
    • Thin-film composite
    • Variation

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Science(all)
    • Water Science and Technology
    • Mechanical Engineering

    Cite this

    A study on producing composite nanofiltration membranes with optimized properties. / Mohammad, A. Wahab; Hilal, Nidal; Nizam Abu Seman, M.

    In: Desalination, Vol. 158, No. 1-3, 01.08.2003, p. 73-78.

    Research output: Contribution to journalArticle

    Mohammad, A. Wahab ; Hilal, Nidal ; Nizam Abu Seman, M. / A study on producing composite nanofiltration membranes with optimized properties. In: Desalination. 2003 ; Vol. 158, No. 1-3. pp. 73-78.
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