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 structure. New insights into arsenic remediation with iron nanomaterials are obtained.
Yan
Weile
W
Center for Advanced Materials and Nanotechnology, Dept. of Civil and Environmental Engineering, Lehigh University, Bethlehem, PA 18015, USA.
Ramos
Mauricio A V
MA
Koel
Bruce E
BE
Zhang
Wei-Xian
WX
D001151:Arsenic / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction
D007501:Iron; D001151:Arsenic