Removal of Antibiotic Florfenicol by Sulfide-Modified Nanoscale Zero-Valent Iron.

Cao, Z; Liu, X; Xu, J; Zhang, J; Yang, Y; Zhou, J; Xu, X; Lowry, GV

Removal of Antibiotic Florfenicol by Sulfide-Modified Nanoscale Zero-Valent Iron.

Cao, Z Liu, X Xu, J Zhang, J Yang, Y Zhou, J

Xu, X Lowry, GV

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Publisher:: American Chemical Society
Publication Type:: Journal Article
Citation:: Environmental Science and Technology, 2017, 51, (19), pp. 11269-11277
Issue Date:: 2017-10-03

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Field	Value	Language
dc.contributor.author	Cao, Z
dc.contributor.author	Liu, X
dc.contributor.author	Xu, J
dc.contributor.author	Zhang, J
dc.contributor.author	Yang, Y
dc.contributor.author	Zhou, J https://orcid.org/0000-0003-1393-1608
dc.contributor.author	Xu, X
dc.contributor.author	Lowry, GV
dc.date.accessioned	2022-08-01T04:36:20Z
dc.date.available	2022-08-01T04:36:20Z
dc.date.issued	2017-10-03
dc.identifier.citation	Environmental Science and Technology, 2017, 51, (19), pp. 11269-11277
dc.identifier.issn	0013-936X
dc.identifier.issn	1520-5851
dc.identifier.uri	http://hdl.handle.net/10453/159431
dc.description.abstract	Florfenicol (FF, C12H14Cl2FNO4S), an emerging halogenated organic contaminant of concern was effectively degraded in water by sulfidized nanoscale zerovalent iron (S-nZVI). Sulfidized nZVI (62.5 m2 g-1) that was prepared using a one-step method resulted in small Fe0/Fe-sulfide particles that were more stable against aggregation than unsulfidized nZVI (10.2 m2 g-1). No obvious removal of FF was observed by unsulfidized nZVI. S-nZVI degraded FF, having a surface area normalized reaction rate constant of 3.1 × 10-4 L m-2 min-1. The effects of the S/Fe molar ratio, initial FF concentration, initial pH, temperature, and water composition on the removal of FF by S-nZVI, and on the formation of reaction products, were systematically investigated. Both dechlorination and defluorination were observed, resulting in four degradation products (C12H15ClFNO4S, C12H16FNO4S, C12H17NO4S, and C12H17NO5S). High removal efficiencies of FF by S-nZVI were achieved in groundwater, river water, seawater, and wastewater. The reactivity of S-nZVI was relatively unaffected by the presence of both dissolved ions and organic matter in the waters tested.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	American Chemical Society
dc.relation.ispartof	Environmental Science and Technology
dc.relation.isbasedon	10.1021/acs.est.7b02480
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Anti-Bacterial Agents
dc.subject.mesh	Iron
dc.subject.mesh	Sulfides
dc.subject.mesh	Thiamphenicol
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Anti-Bacterial Agents
dc.subject.mesh	Iron
dc.subject.mesh	Sulfides
dc.subject.mesh	Thiamphenicol
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Sulfides
dc.subject.mesh	Iron
dc.subject.mesh	Thiamphenicol
dc.subject.mesh	Anti-Bacterial Agents
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.title	Removal of Antibiotic Florfenicol by Sulfide-Modified Nanoscale Zero-Valent Iron.
dc.type	Journal Article
utslib.citation.volume	51
utslib.location.activity	United States
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.consider-herdc	false
dc.date.updated	2022-08-01T04:36:17Z
pubs.issue	19
pubs.publication-status	Published
pubs.volume	51
utslib.citation.issue	19

Abstract:

Florfenicol (FF, C12H14Cl2FNO4S), an emerging halogenated organic contaminant of concern was effectively degraded in water by sulfidized nanoscale zerovalent iron (S-nZVI). Sulfidized nZVI (62.5 m2 g-1) that was prepared using a one-step method resulted in small Fe0/Fe-sulfide particles that were more stable against aggregation than unsulfidized nZVI (10.2 m2 g-1). No obvious removal of FF was observed by unsulfidized nZVI. S-nZVI degraded FF, having a surface area normalized reaction rate constant of 3.1 × 10-4 L m-2 min-1. The effects of the S/Fe molar ratio, initial FF concentration, initial pH, temperature, and water composition on the removal of FF by S-nZVI, and on the formation of reaction products, were systematically investigated. Both dechlorination and defluorination were observed, resulting in four degradation products (C12H15ClFNO4S, C12H16FNO4S, C12H17NO4S, and C12H17NO5S). High removal efficiencies of FF by S-nZVI were achieved in groundwater, river water, seawater, and wastewater. The reactivity of S-nZVI was relatively unaffected by the presence of both dissolved ions and organic matter in the waters tested.

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http://hdl.handle.net/10453/159431