Effects of natural organic matter on separation of the hydroxylated fullerene nanoparticles by cross-flow ultrafiltration membranes from water

Chae, SR; Noeiaghaei, T; Jang, HC; Sahebi, S; Jassby, D; Shon, HK; Park, PK; Kim, JO; Park, JS

Effects of natural organic matter on separation of the hydroxylated fullerene nanoparticles by cross-flow ultrafiltration membranes from water

Chae, SR Noeiaghaei, T Jang, HC Sahebi, S

Jassby, D Shon, HK

Park, PK Kim, JO Park, JS

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Publication Type:: Journal Article
Citation:: Separation and Purification Technology, 2015, 140 pp. 61 - 68
Issue Date:: 2015-01-22

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Field	Value	Language
dc.contributor.author	Chae, SR	en_US
dc.contributor.author	Noeiaghaei, T	en_US
dc.contributor.author	Jang, HC	en_US
dc.contributor.author	Sahebi, S https://orcid.org/0000-0002-5901-1084	en_US
dc.contributor.author	Jassby, D	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Park, PK	en_US
dc.contributor.author	Kim, JO	en_US
dc.contributor.author	Park, JS	en_US
dc.date.issued	2015-01-22	en_US
dc.identifier.citation	Separation and Purification Technology, 2015, 140 pp. 61 - 68	en_US
dc.identifier.issn	1383-5866	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131959
dc.description.abstract	© 2014 Elsevier B.V. All rights reserved. Transport, reactivity, and microbial toxicity of engineered nanomaterials (ENMs) are significantly influenced by the size and surface charge of the nanoparticle aggregates in the environmental media in which they are contained. To remove or separate the colloidal aggregates of ENMs from the aquatic environment, it is important to understand fate and transport of ENMs, and their interaction with other environmental components. Here, we explore the effects of natural organic matter (NOM) and NaCl concentrations on the removal efficiency of hydroxylated fullerene (fullerol) nanoparticle aggregates, nC60(OH)24 by cross-flow ultrafiltration (UF) membranes. We demonstrate that the removal efficiency of nC60(OH)24 (185 nm) by the UF membrane (nominal pore size = 30 nm) was limited at approximately 30%. As NaCl concentration increased from 0 to 1.5 M NaCl, the size of nC 60(OH)24 increased from 185 nm to 1405 nm but the maximum removal efficiency remained below 60%. The presence of NOM increased the stability of nC60(OH)24 and deteriorated the retention of nC60(OH)24 by the UF membranes. The more hydrophilic NOM (i.e., fulvic acid) resulted in lower separation efficiency of nC60(OH)24 by the UF membrane than the less hydrophilic NOM (i.e., humic acid).	en_US
dc.relation.ispartof	Separation and Purification Technology	en_US
dc.relation.isbasedon	10.1016/j.seppur.2014.11.011	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Effects of natural organic matter on separation of the hydroxylated fullerene nanoparticles by cross-flow ultrafiltration membranes from water	en_US
dc.type	Journal Article
utslib.citation.volume	140	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0301 Analytical Chemistry	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	closed_access
pubs.publication-status	Published	en_US
pubs.volume	140	en_US

Abstract:

© 2014 Elsevier B.V. All rights reserved. Transport, reactivity, and microbial toxicity of engineered nanomaterials (ENMs) are significantly influenced by the size and surface charge of the nanoparticle aggregates in the environmental media in which they are contained. To remove or separate the colloidal aggregates of ENMs from the aquatic environment, it is important to understand fate and transport of ENMs, and their interaction with other environmental components. Here, we explore the effects of natural organic matter (NOM) and NaCl concentrations on the removal efficiency of hydroxylated fullerene (fullerol) nanoparticle aggregates, nC60(OH)24 by cross-flow ultrafiltration (UF) membranes. We demonstrate that the removal efficiency of nC60(OH)24 (185 nm) by the UF membrane (nominal pore size = 30 nm) was limited at approximately 30%. As NaCl concentration increased from 0 to 1.5 M NaCl, the size of nC 60(OH)24 increased from 185 nm to 1405 nm but the maximum removal efficiency remained below 60%. The presence of NOM increased the stability of nC60(OH)24 and deteriorated the retention of nC60(OH)24 by the UF membranes. The more hydrophilic NOM (i.e., fulvic acid) resulted in lower separation efficiency of nC60(OH)24 by the UF membrane than the less hydrophilic NOM (i.e., humic acid).

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http://hdl.handle.net/10453/131959