Affiliation:
1. Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
Abstract
Polyamide (PA) Thin-Film Composite (TFC) membranes are widely used for
large-scale water and wastewater treatment processes worldwide owing to their good balance
between water permeability and dissolved solutes separation rate. The physicochemical
properties of the cross-linked PA layer are the main criteria determining the filtration performance
of the resultant TFC membrane, and this selective layer can be created through Interfacial
Polymerization (IP) between two immiscible active monomers, i.e., amine monomer
in aqueous solution and acyl chloride monomer in organic solution. This patent review
article intends to provide insights to researchers in fabricating improved properties of TFC
membranes through the utilization of secondary monomers during IP process. To the best of
our knowledge, this is the first review that gives a state-of-the-art account of the subject
matter by emphasizing the impacts of secondary monomers (both amine and acyl chloride
monomers) on the properties of conventional TFC membranes for nanofiltration and reverse
osmosis applications. Our review indicated that the introduction of secondary monomers into
either aqueous or organic solution could alter the physical and chemical properties of PA
layer, which led to variations in membrane filtration performance. Nevertheless, more research
is still required, as most of the secondary monomers reported in the literature did not
overcome the membrane trade-off effect between permeability and selectivity. The subject
of improved PA layer development is a multi-disciplinary study that requires researchers
with different backgrounds (e.g., materials science, chemistry, physics and engineering) to
work together.
Funder
Ministry of Energy, Science, Technology, Environment and Climate Change (MESTECC), Malaysia
Publisher
Bentham Science Publishers Ltd.
Subject
General Engineering,Condensed Matter Physics,General Materials Science
Cited by
4 articles.
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