Potential and performance of a polydopamine-coated multiwalled carbon nanotube/polysulfone nanocomposite membrane for ultrafiltration application

Sianipar, M; Kim, SH; Min, C; Tijing, LD; Shon, HK

Potential and performance of a polydopamine-coated multiwalled carbon nanotube/polysulfone nanocomposite membrane for ultrafiltration application

Sianipar, M Kim, SH Min, C Tijing, LD

Shon, HK

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Publication Type:: Journal Article
Citation:: Journal of Industrial and Engineering Chemistry, 2016, 34 pp. 364 - 373
Issue Date:: 2016-02-25

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Field	Value	Language
dc.contributor.author	Sianipar, M	en_US
dc.contributor.author	Kim, SH	en_US
dc.contributor.author	Min, C	en_US
dc.contributor.author	Tijing, LD https://orcid.org/0000-0001-9398-6355	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.date.available	2020-05-25T19:10:30Z
dc.date.issued	2016-02-25	en_US
dc.identifier.citation	Journal of Industrial and Engineering Chemistry, 2016, 34 pp. 364 - 373	en_US
dc.identifier.issn	1226-086X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/41585
dc.description.abstract	© 2015 The Korean Society of Industrial and Engineering Chemistry. The addition of multiwalled carbon nanotubes (MWNTs) as inorganic fillers is well known to improve membrane performance for water desalination. Most MWNTs are treated by acid treatment to enhance their hydrophilicity before their applications in membranes. However, acid treatment leads to structural damages of the MWNT wall. An alternative way of improving the hydrophilicity of MWNTs is through coating of polydopamine (Pdop), where MWNT wall damage is avoided. In the present study, polydopamine-coating on MWNT is carried out at pH 8.5 and at room temperature (23-25. °C). Different concentrations (0.1-0.5 wt%) of Pdop-MWNTs were incorporated into polysulfone (Psf) membranes fabricated by phase inversion. The results showed that the incorporation of Pdop-coated MWNTs has increased the membrane permeability using BSA solution (1000 ppm) by 19-50% depending on the amount of Pdop-MWNTs in the membrane, and has maintained good rejection performances (99.88%). Moreover, the antifouling properties of the nanocomposite membranes were also improved. Here, the optimum dose was determined to be 0.1. wt% of Pdop-MWNTs. Furthermore, even though the Pdop-MWNT/Psf membranes showed lower permeability than acid-MWNT/Psf membrane, the Pdop-MWNT/Psf membrane obtained higher mechanical strength and would be potentially sustainable for a long term ultrafiltration operation.	en_US
dc.relation	http://purl.org/au-research/grants/arc/FT140101208
dc.relation.ispartof	Journal of Industrial and Engineering Chemistry	en_US
dc.relation.isbasedon	10.1016/j.jiec.2015.11.025	en_US
dc.subject.classification	Polymers	en_US
dc.title	Potential and performance of a polydopamine-coated multiwalled carbon nanotube/polysulfone nanocomposite membrane for ultrafiltration application	en_US
dc.type	Journal Article
utslib.citation.volume	34	en_US
utslib.for	090404 Membrane and Separation Technologies	en_US
utslib.for	090409 Wastewater Treatment Processes	en_US
utslib.for	090407 Process Control and Simulation	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	34	en_US

Abstract:

© 2015 The Korean Society of Industrial and Engineering Chemistry. The addition of multiwalled carbon nanotubes (MWNTs) as inorganic fillers is well known to improve membrane performance for water desalination. Most MWNTs are treated by acid treatment to enhance their hydrophilicity before their applications in membranes. However, acid treatment leads to structural damages of the MWNT wall. An alternative way of improving the hydrophilicity of MWNTs is through coating of polydopamine (Pdop), where MWNT wall damage is avoided. In the present study, polydopamine-coating on MWNT is carried out at pH 8.5 and at room temperature (23-25. °C). Different concentrations (0.1-0.5 wt%) of Pdop-MWNTs were incorporated into polysulfone (Psf) membranes fabricated by phase inversion. The results showed that the incorporation of Pdop-coated MWNTs has increased the membrane permeability using BSA solution (1000 ppm) by 19-50% depending on the amount of Pdop-MWNTs in the membrane, and has maintained good rejection performances (99.88%). Moreover, the antifouling properties of the nanocomposite membranes were also improved. Here, the optimum dose was determined to be 0.1. wt% of Pdop-MWNTs. Furthermore, even though the Pdop-MWNT/Psf membranes showed lower permeability than acid-MWNT/Psf membrane, the Pdop-MWNT/Psf membrane obtained higher mechanical strength and would be potentially sustainable for a long term ultrafiltration operation.

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http://hdl.handle.net/10453/41585