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Erschienen in: Cellulose 6/2012

01.12.2012 | Original Paper

Preparation of Fe3O4/chitosan/poly(acrylic acid) composite particles and its application in adsorbing copper ion (II)

verfasst von: Sai Zhang, YiFeng Zhou, WangYan Nie, LinYong Song

Erschienen in: Cellulose | Ausgabe 6/2012

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Abstract

Fe3O4/chitosan/poly(acrylic acid) (Fe3O4/CS/PAA) composite particles, which are reusable, biodegradable and of high adsorption capacity, have been prepared through polymerizing acrylic acid in chitosan and Fe3O4 nanoparticles aqueous solution. By varying in-feed mole ratio of carboxyl to amino group (nc/na) and reactant concentration, the average diameter of Fe3O4/CS/PAA composite particles can be controlled to vary from 100 to 300 nm. FT-IR, XRD and TEM were used to characterize Fe3O4/CS/PAA composite particles. Results showed that Fe3O4 was indeed incorporated into CS/PAA particles. The composite particles showed high efficient to remove copper ions (II) in aqueous solution. Adsorption kinetic studies showed that the adsorption process followed a pseudo-second-order kinetic model and the equilibrium data agreed well with the Langmuir model. The saturated adsorption capacity obtained from the experimental was 193 mg/g in close to proximity to the data 200 mg/g calculated from Langmuir model. The saturated adsorption capacity still retained 100 mg/g after three cycles of adsorption–desorption of copper ions (II).

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Metadaten
Titel
Preparation of Fe3O4/chitosan/poly(acrylic acid) composite particles and its application in adsorbing copper ion (II)
verfasst von
Sai Zhang
YiFeng Zhou
WangYan Nie
LinYong Song
Publikationsdatum
01.12.2012
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 6/2012
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-012-9783-4

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