Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized in PVDF super(.Al) sub(2)O sub(3 membrane for dechlorination of monochloroacetic acid)

Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized in PVDF super(.Al) sub(2)O sub(3 membrane for dechlorination of monochloroacetic acid)

An innovative matrix composed of a poly(vinylidene fluoride) (PVDF) membrane modified by adding alumina (Al sub(2O) sub(3)) nanoparticles was prepared. Pd/Fe nanoparticles (NPs) were successfully immobilized in the PVDF super(.Al) sub(2)O sub(3 membrane, which was initially crosslinked by polyacryli...

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Veröffentlicht in:Journal of membrane science 2011-04, Vol.372 (1-2), p.165-171
Hauptverfasser: Meng, ZhaoHong, Liu, HuiLing, Liu, Yan, Zhang, Jian, Yu, ShuiLi, Cui, FuYi, Ren, NanQi, Ma, Jun
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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, ZhaoHong
Liu, HuiLing
Liu, Yan
Zhang, Jian
Yu, ShuiLi
Cui, FuYi
Ren, NanQi
Ma, Jun
description An innovative matrix composed of a poly(vinylidene fluoride) (PVDF) membrane modified by adding alumina (Al sub(2O) sub(3)) nanoparticles was prepared. Pd/Fe nanoparticles (NPs) were successfully immobilized in the PVDF super(.Al) sub(2)O sub(3 membrane, which was initially crosslinked by polyacrylic acid (PAA). The PVDF) super(.)Al sub(2O) sub(3) membrane and the Pd/Fe NPs immobilized in PVDF super(.Al) sub(2)O sub(3 were characterized by scanning electronic microscope (SEM), energy dispersive spectrometry (EDS) and Fourier transform infrared spectroscopy (FT-IR). Studies showed that the amount of Fe immobilized in the PVDF) super(.)Al sub(2O) sub(3) membrane was four times more than the amount in a traditional PVDF membrane carrier of the same surface size. Pd/Fe NPs immobilized in PVDF super(.Al) sub(2)O sub(3 exhibited high efficiency and stability in terms of dechlorination of monochloroacetic acid (MCAA). The effects of several important experimental parameters, including the added Al) sub(2)O sub(3 amount in PVDF, ferrous concentration in crosslinking solution and Pd content in Pd/Fe NPs were investigated. The reasons behind the improved properties of the PVDF) super(.)Al sub(2O) sub(3) membrane were discussed.
doi_str_mv 10.1016/j.memsci.2011.01.064
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title Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized in PVDF super(.Al) sub(2)O sub(3 membrane for dechlorination of monochloroacetic acid)
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