TY - JOUR
T1 - Engineering of iron-based magnetic activated carbon fabrics for environmental remediation
AU - Haham, Hai
AU - Grinblat, Judith
AU - Sougrati, Moulay Tahar
AU - Stievano, Lorenzo
AU - Margel, Shlomo
N1 - Publisher Copyright:
© 2015 by the authors.
PY - 2015/7/22
Y1 - 2015/7/22
N2 - Magnetic Fe3O4, Fe and Fe/Pd nanoparticles embedded within the pores of activated carbon fabrics (ACF) were prepared by impregnation of the ACF in iron acetylacetanoate (Fe(acac)3) ethanol solution, followed by thermal decomposition of the embedded iron precursor at 200, 400 and 600 °C in an inert atmosphere. The effect of the annealing temperature on the chemical composition, shape, crystallinity, surface area, pore volume, and magnetic properties of the various functionalized ACF was elucidated. The Fe nanoparticles within the ACF were also doped with tinier Pd nanoparticles, by impregnation of the Fe/ACF in palladium acetate ethanol solution. The potential use of the functionalized ACF for removal of a model azo-dye, orange II, was demonstrated. This study illustrated the enhanced removal of the dye from an aqueous solution according to the following order: Fe/Pd/ACF > Fe/ACF > ACF. In addition, the enhanced activity of Fe3O4/ACF in the presence of increasing concentrations of H2O2 (Fenton catalysts) was also illustrated.
AB - Magnetic Fe3O4, Fe and Fe/Pd nanoparticles embedded within the pores of activated carbon fabrics (ACF) were prepared by impregnation of the ACF in iron acetylacetanoate (Fe(acac)3) ethanol solution, followed by thermal decomposition of the embedded iron precursor at 200, 400 and 600 °C in an inert atmosphere. The effect of the annealing temperature on the chemical composition, shape, crystallinity, surface area, pore volume, and magnetic properties of the various functionalized ACF was elucidated. The Fe nanoparticles within the ACF were also doped with tinier Pd nanoparticles, by impregnation of the Fe/ACF in palladium acetate ethanol solution. The potential use of the functionalized ACF for removal of a model azo-dye, orange II, was demonstrated. This study illustrated the enhanced removal of the dye from an aqueous solution according to the following order: Fe/Pd/ACF > Fe/ACF > ACF. In addition, the enhanced activity of Fe3O4/ACF in the presence of increasing concentrations of H2O2 (Fenton catalysts) was also illustrated.
KW - Carbon fabrics
KW - Environmental remediation
KW - Iron nanoparticles
KW - Iron oxide nanoparticles
KW - Magnetic nanomaterials
KW - Thermal decomposition
UR - http://www.scopus.com/inward/record.url?scp=84937708447&partnerID=8YFLogxK
U2 - 10.3390/ma8074593
DO - 10.3390/ma8074593
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C2 - 28793459
AN - SCOPUS:84937708447
SN - 1996-1944
VL - 8
SP - 4593
EP - 4607
JO - Materials
JF - Materials
IS - 7
ER -