Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized in PVDF.Al2O3 membrane for dechlorination of monochloroacetic acid

Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized in PVDF.Al2O3 membrane for dechlorination of monochloroacetic acid

An innovative matrix composed of a poly(vinylidene fluoride) (PVDF) membrane modified by Al2O3 nanoparticles was prepared. Pd/Fe nanoparticles (NPs) were immobilised in the PVDF/Al2O3 membranes, which were initially crosslinked by polyacrylic acid. The PVDF/Al2O3 membranes and the Pd/Fe NPs immobili...

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Veröffentlicht in:Journal of membrane science 2011-01, Vol.372 (1-2), p.165-171
Hauptverfasser: Meng, Z-H, Liu, H-L, Liu, Y, Zhang, J, Yu, S-L, Cui, F-Y, Ren, N-Q, Ma, J
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Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Membranes
Physical and chemical studies. Granulometry. Electrokinetic phenomena
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container_end_page 171
container_issue 1-2
container_start_page 165
container_title Journal of membrane science
container_volume 372
creator Meng, Z-H
Liu, H-L
Liu, Y
Zhang, J
Yu, S-L
Cui, F-Y
Ren, N-Q
Ma, J
description An innovative matrix composed of a poly(vinylidene fluoride) (PVDF) membrane modified by Al2O3 nanoparticles was prepared. Pd/Fe nanoparticles (NPs) were immobilised in the PVDF/Al2O3 membranes, which were initially crosslinked by polyacrylic acid. The PVDF/Al2O3 membranes and the Pd/Fe NPs immobilised in PVDF/Al2O3 were characterised by SEM, EDS and FTIR. Studies showed that the amount of Fe immobilised in the PVDF/Al2O3 membrane was four times more than the amount in a traditional PVDF membrane carrier of the same surface size. Pd/Fe NPs immobilised in PVDF/Al2O3 exhibited high efficiency and stability in terms of dechlorination of monochloroacetic acid. The effects of several important experimental parameters, including the amount of Al2O3 added to PVDF, ferrous concentration in crosslinking solution and Pd content in Pd/Fe NPs, were investigated. The reasons behind the improved properties of the PVDF.Al2O3 membranes are discussed.
doi_str_mv 10.1016/j.memsci.2011.01.064
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subjects Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Membranes
Physical and chemical studies. Granulometry. Electrokinetic phenomena
title Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized in PVDF.Al2O3 membrane for dechlorination of monochloroacetic acid
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