TY - JOUR
T1 - Engineering of air-stable Fe/C/Pd composite nanoparticles for environmental remediation applications
AU - Haham, Hai
AU - Grinblat, Judith
AU - Sougrati, Moulay Tahar
AU - Stievano, Lorenzo
AU - Margel, Shlomo
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - Abstract The present manuscript presents a convenient method for the synthesis of iron/carbon (Fe/C) nanoparticles (NPs) coated with much smaller Pd NPs for the removal of halogenated organic pollutants. For this purpose, iron oxide/polyvinylpyrrolidone (IO/PVP) NPs were first prepared by the thermal decomposition of ferrocene mixed with PVP at 350 °C under an inert atmosphere. IO,Fe/C and Fe/C NPs coated with graphitic and amorphous carbon layers were then produced by annealing the IO/PVP NPs at 500 and 600 °C, respectively, under an inert atmosphere. The effect of the annealing temperature on the chemical composition, shape, crystallinity, surface area and magnetic properties of the IO/PVP, IO,Fe/C and Fe/C NPs has been elucidated. Air-stable Fe/C/Pd NPs were produced by mixing the precursor palladium acetate with the air-stable Fe/C NPs in ethanol. The obtained Fe/C/Pd NPs demonstrated significantly higher environmental activity than the Fe/C NPs on eosin Y, a model halogenated organic pollutant. The environmental activity of the Fe/C/Pd NPs also increased with their increasing Pd content.
AB - Abstract The present manuscript presents a convenient method for the synthesis of iron/carbon (Fe/C) nanoparticles (NPs) coated with much smaller Pd NPs for the removal of halogenated organic pollutants. For this purpose, iron oxide/polyvinylpyrrolidone (IO/PVP) NPs were first prepared by the thermal decomposition of ferrocene mixed with PVP at 350 °C under an inert atmosphere. IO,Fe/C and Fe/C NPs coated with graphitic and amorphous carbon layers were then produced by annealing the IO/PVP NPs at 500 and 600 °C, respectively, under an inert atmosphere. The effect of the annealing temperature on the chemical composition, shape, crystallinity, surface area and magnetic properties of the IO/PVP, IO,Fe/C and Fe/C NPs has been elucidated. Air-stable Fe/C/Pd NPs were produced by mixing the precursor palladium acetate with the air-stable Fe/C NPs in ethanol. The obtained Fe/C/Pd NPs demonstrated significantly higher environmental activity than the Fe/C NPs on eosin Y, a model halogenated organic pollutant. The environmental activity of the Fe/C/Pd NPs also increased with their increasing Pd content.
KW - Composite nanoparticles
KW - Environmental remediation
KW - Fe/C nanoparticles
KW - Fe/C/Pd nanoparticles
KW - Magnetic nanomaterials
KW - Thermal decomposition
UR - http://www.scopus.com/inward/record.url?scp=84928016666&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2015.04.039
DO - 10.1016/j.jmmm.2015.04.039
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AN - SCOPUS:84928016666
SN - 0304-8853
VL - 389
SP - 82
EP - 89
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
M1 - 60098
ER -