Adsorption behavior and mechanism of chloramphenicols, sulfonamides, and non-antibiotic pharmaceuticals on multi-walled carbon nanotubes.

Zhao, H; Liu, X; Cao, Z; Zhan, Y; Shi, X; Yang, Y; Zhou, J; Xu, J

Adsorption behavior and mechanism of chloramphenicols, sulfonamides, and non-antibiotic pharmaceuticals on multi-walled carbon nanotubes.

Zhao, H Liu, X Cao, Z Zhan, Y Shi, X Yang, Y Zhou, J

Xu, J

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: J Hazard Mater, 2016, 310, pp. 235-245
Issue Date:: 2016-06-05

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Field	Value	Language
dc.contributor.author	Zhao, H
dc.contributor.author	Liu, X
dc.contributor.author	Cao, Z
dc.contributor.author	Zhan, Y
dc.contributor.author	Shi, X
dc.contributor.author	Yang, Y
dc.contributor.author	Zhou, J https://orcid.org/0000-0003-1393-1608
dc.contributor.author	Xu, J
dc.date.accessioned	2022-02-23T20:58:21Z
dc.date.available	2016-02-21
dc.date.available	2022-02-23T20:58:21Z
dc.date.issued	2016-06-05
dc.identifier.citation	J Hazard Mater, 2016, 310, pp. 235-245
dc.identifier.issn	0304-3894
dc.identifier.issn	1873-3336
dc.identifier.uri	http://hdl.handle.net/10453/154815
dc.description.abstract	The adsorption behavior of different emerging contaminants (3 chloramphenicols, 7 sulfonamides, and 3 non-antibiotic pharmaceuticals) on five types of multi-walled carbon nanotubes (MWCNTs), and the underlying factors were studied. Adsorption equilibriums were reached within 12h for all compounds, and well fitted by the Freundlich isotherm model. The adsorption affinity of pharmaceuticals was positively related to the specific surface area of MWCNTs. The solution pH was an important parameter of pharmaceutical adsorption on MWCNTs, due to its impacts on the chemical speciation of pharmaceuticals and the surface electrical property of MWCNTs. The adsorption of ionizable pharmaceuticals decreased in varying degrees with the increased ionic strength. MWCNT-10 was found to be the strongest adsorbent in this study, and the Freundlich constant (KF) values were 353-2814mmol(1-n)L(n)/kg, 571-618mmol(1-n)L(n)/kg, and 317-1522mmol(1-n)L(n)/kg for sulfonamides, chloramphenicols, and non-antibiotic pharmaceuticals, respectively. The different adsorption affinity of sulfonamides might contribute to the different hydrophobic of heterocyclic substituents, while chloramphenicols adsorption was affected by the charge distribution in aromatic rings via substituent effects.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER
dc.relation.ispartof	J Hazard Mater
dc.relation.isbasedon	10.1016/j.jhazmat.2016.02.045
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 05 Environmental Sciences, 09 Engineering
dc.subject.classification	Strategic, Defence & Security Studies
dc.subject.mesh	Adsorption
dc.subject.mesh	Anti-Bacterial Agents
dc.subject.mesh	Carbamazepine
dc.subject.mesh	Chloramphenicol
dc.subject.mesh	Diclofenac
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Hydrophobic and Hydrophilic Interactions
dc.subject.mesh	Ibuprofen
dc.subject.mesh	Nanotubes, Carbon
dc.subject.mesh	Sulfonamides
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Nanotubes, Carbon
dc.subject.mesh	Chloramphenicol
dc.subject.mesh	Sulfonamides
dc.subject.mesh	Diclofenac
dc.subject.mesh	Ibuprofen
dc.subject.mesh	Carbamazepine
dc.subject.mesh	Anti-Bacterial Agents
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Adsorption
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Hydrophobic and Hydrophilic Interactions
dc.title	Adsorption behavior and mechanism of chloramphenicols, sulfonamides, and non-antibiotic pharmaceuticals on multi-walled carbon nanotubes.
dc.type	Journal Article
utslib.citation.volume	310
utslib.location.activity	Netherlands
utslib.for	03 Chemical Sciences
utslib.for	05 Environmental Sciences
utslib.for	09 Engineering
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	*
dc.date.updated	2022-02-23T20:58:17Z
pubs.publication-status	Published
pubs.volume	310

Abstract:

The adsorption behavior of different emerging contaminants (3 chloramphenicols, 7 sulfonamides, and 3 non-antibiotic pharmaceuticals) on five types of multi-walled carbon nanotubes (MWCNTs), and the underlying factors were studied. Adsorption equilibriums were reached within 12h for all compounds, and well fitted by the Freundlich isotherm model. The adsorption affinity of pharmaceuticals was positively related to the specific surface area of MWCNTs. The solution pH was an important parameter of pharmaceutical adsorption on MWCNTs, due to its impacts on the chemical speciation of pharmaceuticals and the surface electrical property of MWCNTs. The adsorption of ionizable pharmaceuticals decreased in varying degrees with the increased ionic strength. MWCNT-10 was found to be the strongest adsorbent in this study, and the Freundlich constant (KF) values were 353-2814mmol(1-n)L(n)/kg, 571-618mmol(1-n)L(n)/kg, and 317-1522mmol(1-n)L(n)/kg for sulfonamides, chloramphenicols, and non-antibiotic pharmaceuticals, respectively. The different adsorption affinity of sulfonamides might contribute to the different hydrophobic of heterocyclic substituents, while chloramphenicols adsorption was affected by the charge distribution in aromatic rings via substituent effects.

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http://hdl.handle.net/10453/154815