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Title: A step forward to a more efficient wastewater treatment by membrane surface modification via polymerizable bicontinuous microemulsion
Authors: Galiano, Francesco
Figoli, Alberto
Deowan, Shamim Ahmed
Johnson, Daniel
Alsoy Altınkaya, Sacide
Veltri, Lucia
De Luca, Giorgio
Mancuso, Raffaella
Hilal, Nidal
Gabriele, Bartolo
Hoinkis, Jan
Keywords: Membrane
Polymerizable bicontinuous microemulsions
Polymerizable surfactants
Surface modification
Water treatment
Issue Date: May-2015
Publisher: Elsevier Ltd.
Source: Galiano, F., Figoli, A., Deowan, S. A., Johnson, D., Alsoy Altınkaya, S., Veltri, L.,...Hoinkis, J. (2015). A step forward to a more efficient wastewater treatment by membrane surface modification via polymerizable bicontinuous microemulsion. Journal of Membrane Science, 482, 103-114. doi:10.1016/j.memsci.2015.02.019
Abstract: An innovative hydrophilic and anti-fouling coating material for application in membrane technology for wastewater treatment has been developed by polymerization of a polymerizable bicontinuous microemulsion (PBM) and used for surface modification of a commercial flat polyethersulfone (PES) membrane. The novel nanostructured coating has been produced using acryloyloxyundecyltriethylammonium bromide (AUTEAB) as a co-polymerizable surfactant, obtained through a synthetic method characterized by a lower cost and a higher reproducibility compared to other known polymerizable surfactants. The novel composite membranes have been characterized and compared with the uncoated PES membranes. Coated membranes resulted in a smoother surface and a higher hydrophilicity with respect to the uncoated ones, and showed a particular nano-size channel-like morphology making them highly resistant to the fouling phenomenon. The covalent anchorage of the surfactant on the membrane surface ensured the embedment of the molecule in the polymeric matrix avoiding its leaching and also leading the coated membranes to have significant antimicrobial activity, which is very important for reducing the biofouling phenomenon.All these aspects make the tailored coating material an ideal and efficient coating for modifications of commercial membrane surfaces, to be used in membrane processes in wastewater treatment.
ISSN: 0376-7388
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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