PMID: 15224751Jul 1, 2004Paper

Swelling and morphology of the skin layer of polyamide composite membranes: an atomic force microscopy study

Environmental Science & Technology
Viatcheslav Freger

Abstract

The paper introduces a new methodology for studying polyamide composite membranes for reverse osmosis (RO) and nanofiltration (NF) in liquid environments. The methodology is based on atomic force microscopy of the active layer, which had been separated from the support and placed on a solid substrate. The approach was employed to determine the thickness, interfacial morphology, and dimensional changes in solution (swelling) of polyamide films. The face (active) and back (facing the support) surfaces of the RO films appeared morphologically similar, in agreement with the recently proposed model of skin formation. Measured thickness and swelling data in conjunction with the intrinsic permeability of the membranes suggest that the selective barrier in RO membrane constitutes only a fraction of the polyamide skin, whereas NF membranes behave as nearly uniform films. For NF membranes, there was reasonable correlation between the changes in the swelling and in the permeability of the membrane and the salinity and pH of the feed.

References

Mar 29, 1977·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·P Meares
Sep 14, 2000·Journal of Colloid and Interface Science· Richard Bowen W, T A Doneva

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Citations

Mar 23, 2011·Environmental Science & Technology·Roy BernsteinViatcheslav Freger
Jan 21, 2012·Environmental Science & Technology·Emil DrazevicViatcheslav Freger
Aug 18, 2012·Environmental Science & Technology·Yi-Ning WangChuyang Y Tang
Dec 14, 2012·Environmental Science & Technology·Nhu-Ngoc Bui, Jeffrey R McCutcheon
Nov 13, 2013·Water Research·Emil DraževićViatcheslav Freger
Jul 28, 2015·ACS Applied Materials & Interfaces·Xinglin LuMenachem Elimelech
Oct 9, 2015·Water Research·Oded NirViatcheslav Freger
Feb 20, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Andriy YaroshchukMerlin L Bruening
Oct 10, 2015·The Journal of Physical Chemistry. B·Vesselin Kolev, Viatcheslav Freger
Sep 26, 2006·Journal of Colloid and Interface Science·Xiaoyan SongRobert K Thomas
Nov 26, 2010·Advances in Colloid and Interface Science·Andrea I SchäferAndrea J C Semião
May 5, 2016·Environmental Science & Technology·Helfrid M A Schulte-HerbrüggenMargaret C Graham
Aug 26, 2016·The Journal of Physical Chemistry. B·Thilanga P Liyana-ArachchiCoray M Colina
Jan 20, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Noga Fridman-Bishop, Viatcheslav Freger
Jan 27, 2017·Environmental Science & Technology·Katie Baransi-KarkabyViatcheslav Freger
Apr 27, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Carlos Echaide-GórrizJoaquín Coronas
Aug 18, 2018·Science·Maqsud R ChowdhuryJeffrey R McCutcheon
Nov 13, 2013·Science and Technology of Advanced Materials·Hidenori OtsukaYuichi Nakasone
Nov 27, 2020·Science Advances·Xuechen ZhouMenachem Elimelech
Oct 4, 2019·Journal of Membrane Science·Devin L ShafferChristopher M Stafford
Nov 14, 2020·Proceedings of the National Academy of Sciences of the United States of America·Cody L RittMenachem Elimelech
Feb 23, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Viatcheslav Freger
Feb 23, 2010·The Journal of Physical Chemistry. B·Sarit BasonViatcheslav Freger
Jan 27, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Yair KaufmanViatcheslav Freger
Jun 19, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Roy BernsteinViatcheslav Freger
Jun 15, 2021·Journal of Molecular Graphics & Modelling·Arash Mollahosseini, Amira Abdelrasoul
Jun 8, 2021·Journal of Membrane Science·William D MulhearnChristopher M Stafford
Jun 1, 2018·Environmental Science & Technology·Chanhee BooMenachem Elimelech
Apr 18, 2017·Environmental Science & Technology·Shardul S Wadekar, Radisav D Vidic
Apr 13, 2016·Industrial & Engineering Chemistry Research·Andrew S ColburnDibakar Bhattacharyya
Aug 20, 2014·Environmental Science & Technology·Emil DraževićViatcheslav Freger

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