Protein fouling in carbon nanotubes enhanced ultrafiltration membrane: Fouling mechanism as a function of pH and ionic strength

Handle URI:
http://hdl.handle.net/10754/621880
Title:
Protein fouling in carbon nanotubes enhanced ultrafiltration membrane: Fouling mechanism as a function of pH and ionic strength
Authors:
Lee, Jieun; Jeong, Sanghyun; Ye, Yun; Chen, Vicki; Vigneswaran, Saravanamuthu; Leiknes, TorOve ( 0000-0003-4046-5622 ) ; Liu, Zongwen
Abstract:
The protein fouling behavior was investigated in the filtration of the multiwall carbon nanotube (MWCNT) composite membrane and commercial polyethersulfone ultrafiltration (PES-UF) membrane. The effect of solution chemistry such as pH and ionic strength on the protein fouling mechanism was systematically examined using filtration model such as complete pore blocking, intermediate pore blocking and cake layer formation. The results showed that the initial permeate flux pattern and fouling behavior of the MWCNT composite membrane were significantly influenced by pH and ionic strength while the effect of PES-UF membrane on flux was minimal. In a lysozyme (Lys) filtration, the severe pore blocking in the MWCNT membrane was made by the combined effect of intra-foulant interaction (Lys-Lys) and electrostatic repulsion between the membrane surface and the foulant at pH 4.7 and 10.4, and increasing ionic strength where the foulant-foulant interaction and membrane-fouling interaction were weak. In a bovine serum albumin (BSA) filtration, severe pore blocking was reduced by less deposition via the electrostatic interaction between the membrane and foulant at pH 4.7 and 10.4 and increasing ionic strength, at which the interaction between the membrane and BSA became weak. For binary mixture filtration, the protein fouling mechanism was more dominantly affected by foulant-foulant interaction (Lys-BSA, Lys-Lys, and BSA-BSA) at pH 7.0 and increase in ionic strength. This research demonstrates that MWCNT membrane fouling can be alleviated by changing pH condition and ionic strength based on the foulant-foulant interaction and the electrostatic interaction between the membrane and foulant.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
Lee J, Jeong S, Ye Y, Chen V, Vigneswaran S, et al. (2016) Protein fouling in carbon nanotubes enhanced ultrafiltration membrane: Fouling mechanism as a function of pH and ionic strength. Separation and Purification Technology. Available: http://dx.doi.org/10.1016/j.seppur.2016.10.061.
Publisher:
Elsevier BV
Journal:
Separation and Purification Technology
Issue Date:
4-Nov-2016
DOI:
10.1016/j.seppur.2016.10.061
Type:
Article
ISSN:
1383-5866
Sponsors:
J.LEE acknowledges Kapyong Commemorative Postgraduate Scholarship awarded by the Australian Government. This research was also supported by the Faculty of Engineering & Information Technologies, The University of Sydney, under the Faculty Research Cluster Program.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S1383586616311121
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLee, Jieunen
dc.contributor.authorJeong, Sanghyunen
dc.contributor.authorYe, Yunen
dc.contributor.authorChen, Vickien
dc.contributor.authorVigneswaran, Saravanamuthuen
dc.contributor.authorLeiknes, TorOveen
dc.contributor.authorLiu, Zongwenen
dc.date.accessioned2016-11-24T13:47:31Z-
dc.date.available2016-11-24T13:47:31Z-
dc.date.issued2016-11-04en
dc.identifier.citationLee J, Jeong S, Ye Y, Chen V, Vigneswaran S, et al. (2016) Protein fouling in carbon nanotubes enhanced ultrafiltration membrane: Fouling mechanism as a function of pH and ionic strength. Separation and Purification Technology. Available: http://dx.doi.org/10.1016/j.seppur.2016.10.061.en
dc.identifier.issn1383-5866en
dc.identifier.doi10.1016/j.seppur.2016.10.061en
dc.identifier.urihttp://hdl.handle.net/10754/621880-
dc.description.abstractThe protein fouling behavior was investigated in the filtration of the multiwall carbon nanotube (MWCNT) composite membrane and commercial polyethersulfone ultrafiltration (PES-UF) membrane. The effect of solution chemistry such as pH and ionic strength on the protein fouling mechanism was systematically examined using filtration model such as complete pore blocking, intermediate pore blocking and cake layer formation. The results showed that the initial permeate flux pattern and fouling behavior of the MWCNT composite membrane were significantly influenced by pH and ionic strength while the effect of PES-UF membrane on flux was minimal. In a lysozyme (Lys) filtration, the severe pore blocking in the MWCNT membrane was made by the combined effect of intra-foulant interaction (Lys-Lys) and electrostatic repulsion between the membrane surface and the foulant at pH 4.7 and 10.4, and increasing ionic strength where the foulant-foulant interaction and membrane-fouling interaction were weak. In a bovine serum albumin (BSA) filtration, severe pore blocking was reduced by less deposition via the electrostatic interaction between the membrane and foulant at pH 4.7 and 10.4 and increasing ionic strength, at which the interaction between the membrane and BSA became weak. For binary mixture filtration, the protein fouling mechanism was more dominantly affected by foulant-foulant interaction (Lys-BSA, Lys-Lys, and BSA-BSA) at pH 7.0 and increase in ionic strength. This research demonstrates that MWCNT membrane fouling can be alleviated by changing pH condition and ionic strength based on the foulant-foulant interaction and the electrostatic interaction between the membrane and foulant.en
dc.description.sponsorshipJ.LEE acknowledges Kapyong Commemorative Postgraduate Scholarship awarded by the Australian Government. This research was also supported by the Faculty of Engineering & Information Technologies, The University of Sydney, under the Faculty Research Cluster Program.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1383586616311121en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Separation and Purification Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Separation and Purification Technology, 4 November 2016. DOI: 10.1016/j.seppur.2016.10.061en
dc.subjectBovine serum albuminen
dc.subjectCarbon nanotube membraneen
dc.subjectIsoelectric pointen
dc.subjectLysozymeen
dc.subjectProtein foulingen
dc.subjectSolution chemistryen
dc.titleProtein fouling in carbon nanotubes enhanced ultrafiltration membrane: Fouling mechanism as a function of pH and ionic strengthen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalSeparation and Purification Technologyen
dc.eprint.versionPost-printen
dc.contributor.institutionSchool of Chemical and Biomolecular Engineering, the University of Sydney, NSW 2006, Australiaen
dc.contributor.institutionFaculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australiaen
dc.contributor.institutionUNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, NSW, Australiaen
kaust.authorJeong, Sanghyunen
kaust.authorLeiknes, TorOveen
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