Analytical characterisation of nanoscale zero-valent iron: A methodological review

Chekli, L; Bayatsarmadi, B; Sekine, R; Sarkar, B; Shen, AM; Scheckel, KG; Skinner, W; Naidu, R; Shon, HK; Lombi, E; Donner, E

Analytical characterisation of nanoscale zero-valent iron: A methodological review

Chekli, L

Bayatsarmadi, B Sekine, R Sarkar, B Shen, AM Scheckel, KG Skinner, W Naidu, R Shon, HK

Lombi, E Donner, E

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Publication Type:: Journal Article
Citation:: Analytica Chimica Acta, 2016, 903 pp. 13 - 35
Issue Date:: 2016-01-15

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Field	Value	Language
dc.contributor.author	Chekli, L https://orcid.org/0000-0002-9353-943X	en_US
dc.contributor.author	Bayatsarmadi, B	en_US
dc.contributor.author	Sekine, R	en_US
dc.contributor.author	Sarkar, B	en_US
dc.contributor.author	Shen, AM	en_US
dc.contributor.author	Scheckel, KG	en_US
dc.contributor.author	Skinner, W	en_US
dc.contributor.author	Naidu, R	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Lombi, E	en_US
dc.contributor.author	Donner, E	en_US
dc.date.available	2020-05-25T19:14:47Z
dc.date.issued	2016-01-15	en_US
dc.identifier.citation	Analytica Chimica Acta, 2016, 903 pp. 13 - 35	en_US
dc.identifier.issn	0003-2670	en_US
dc.identifier.uri	http://hdl.handle.net/10453/38165
dc.description.abstract	© 2015 Elsevier B.V. Zero-valent iron nanoparticles (nZVI) have been widely tested as they are showing significant promise for environmental remediation. However, many recent studies have demonstrated that their mobility and reactivity in subsurface environments are significantly affected by their tendency to aggregate. Both the mobility and reactivity of nZVI mainly depends on properties such as particle size, surface chemistry and bulk composition. In order to ensure efficient remediation, it is crucial to accurately assess and understand the implications of these properties before deploying these materials into contaminated environments. Many analytical techniques are now available to determine these parameters and this paper provides a critical review of their usefulness and limitations for nZVI characterisation. These analytical techniques include microscopy and light scattering techniques for the determination of particle size, size distribution and aggregation state, and X-ray techniques for the characterisation of surface chemistry and bulk composition. Example characterisation data derived from commercial nZVI materials is used to further illustrate method strengths and limitations. Finally, some important challenges with respect to the characterisation of nZVI in groundwater samples are discussed.	en_US
dc.relation.ispartof	Analytica Chimica Acta	en_US
dc.relation.isbasedon	10.1016/j.aca.2015.10.040	en_US
dc.subject.classification	Analytical Chemistry	en_US
dc.title	Analytical characterisation of nanoscale zero-valent iron: A methodological review	en_US
dc.type	Journal Article
utslib.citation.volume	903	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0399 Other Chemical Sciences	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	903	en_US

Abstract:

© 2015 Elsevier B.V. Zero-valent iron nanoparticles (nZVI) have been widely tested as they are showing significant promise for environmental remediation. However, many recent studies have demonstrated that their mobility and reactivity in subsurface environments are significantly affected by their tendency to aggregate. Both the mobility and reactivity of nZVI mainly depends on properties such as particle size, surface chemistry and bulk composition. In order to ensure efficient remediation, it is crucial to accurately assess and understand the implications of these properties before deploying these materials into contaminated environments. Many analytical techniques are now available to determine these parameters and this paper provides a critical review of their usefulness and limitations for nZVI characterisation. These analytical techniques include microscopy and light scattering techniques for the determination of particle size, size distribution and aggregation state, and X-ray techniques for the characterisation of surface chemistry and bulk composition. Example characterisation data derived from commercial nZVI materials is used to further illustrate method strengths and limitations. Finally, some important challenges with respect to the characterisation of nZVI in groundwater samples are discussed.

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http://hdl.handle.net/10453/38165