Multi-tiered distributions of arsenic in iron nanoparticles: Observation of dual redox functionality enabled by a core-shell structure

Multi-tiered arsenic distributions within nanoscale zero-valent iron (nZVI) were observed upon reactions of nZVI with aqueous As(iii) species, suggesting arsenite oxidation and reduction may occur in parallel at different sub-domains of the nanoparticles owing to the particle's core-shell struc...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2010-10, Vol.46 (37), p.6995-6997
Main Authors: Yan, Weile, Ramos, Mauricio A V, Koel, Bruce E, Zhang, Wei-Xian
Format: Article
Language:English
Subjects:
Arsenic
Arsenic - chemistry
Core-shell structure
Iron
Iron - chemistry
Metal Nanoparticles - chemistry
Molecular Structure
Nanocomposites
Nanomaterials
Nanoparticles
Nanostructure
Oxidation-Reduction
Remediation
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Summary:Multi-tiered arsenic distributions within nanoscale zero-valent iron (nZVI) were observed upon reactions of nZVI with aqueous As(iii) species, suggesting arsenite oxidation and reduction may occur in parallel at different sub-domains of the nanoparticles owing to the particle's core-shell structure. New insights into arsenic remediation with iron nanomaterials are obtained.
ISSN:1359-7345
1364-548X
DOI:10.1039/c0cc02311f