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Journal of Polymer Research
Erschienen in: Journal of Polymer Research 5/2021

01.05.2021 | ORIGINAL PAPER

Preparation and evaluation of amidoximated poly(styrene-acrylonitrile) nanofibers for uranium adsorption from aqueous solutions

verfasst von: Roshanak Rostamian, Mahmoud Firouzzare, Fazel Zahakifar

Erschienen in: Journal of Polymer Research | Ausgabe 5/2021

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Abstract

In the present research, ultrafine styrene–acrylonitrile copolymer nanofibers (SAN-NFs) were prepared based on the forcespinning method. The SAN solution of 10% in THF: DMF solvent mixture, a 27-gauge nozzle and a rotational speed of 5000 rpm were the optimized parameters for the preparation of SAN-NFs with an average diameter of 335 nm. The obtained nanofibers were used to adsorb uranium (U) from aqueous solutions after converting their nitrile groups to amidoxime by hydroxylamine solution (10%, w/v). For evaluating the applicability of SAN-NFs to U removal and so, the process of adsorption, the effects the initial concentration of U, solution pH and contact time were studied. The maximum adsorption of U ions was 177 mg.g−1, which was obtained under optimal conditions of pH 4 and contact time of 270 min by prepared NFs. The results showed that the proper model for equilibrium isotherm is the Langmuir model and also the kinetics of U adsorption on this adsorbent is based on the pseudo-second-order model.

Graphical abstract

Vorheriger Artikel CoFe2O4@methylcellulose synthesized as a new magnetic nanocomposite to tetracycline adsorption: modeling, analysis, and optimization by response surface methodology
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Metadaten
Titel
Preparation and evaluation of amidoximated poly(styrene-acrylonitrile) nanofibers for uranium adsorption from aqueous solutions
verfasst von
Roshanak Rostamian
Mahmoud Firouzzare
Fazel Zahakifar
Publikationsdatum
01.05.2021
Verlag
Springer Netherlands
Erschienen in
Journal of Polymer Research / Ausgabe 5/2021
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-021-02552-8

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