Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1911
Title: Synthesis of amidoximated polyacrylonitrile fibers and its application for sorption of aqueous uranyl ions under continuous flow
Authors: Horzum Polat, Nesrin
Shahwan, Talal
Parlak, Onur
Demir, Mustafa Muammer
Keywords: Fibers
Amidoximation
Desorption
Electrospinning
Polyacrylonitrile
Sorption
Uranyl ions
Issue Date: Dec-2012
Publisher: Elsevier Ltd.
Source: Horzum, N., Shahwan, T., Parlak, O., and Demir, M. M. (2012). Synthesis of amidoximated polyacrylonitrile fibers and its application for sorption of aqueous uranyl ions under continuous flow. Chemical Engineering Journal, 213, 41-49. doi:10.1016/j.cej.2012.09.114
Abstract: This study reports a feasible method for the removal of radioactive U(VI) ions from aqueous systems via column sorption under continuous flow. Electrospun polyacrylonitrile (PAN) fibers were used as sorbent materials in a homemade minicolumn. The nitrile groups on the fibers' surface were modified to amidoxime groups using hydroxylamine hydrochloride. Surface modification was observed to enhance the sorption capacity of PAN fibers toward uranium ions by more than 4-fold by virtue of the chelating ability of the amidoxime groups. The experiments investigated the effect of pH, initial concentration, and repetitive loading on the sorption properties of amidoximated PAN fibers. Based on the overall results, the surface-modified fibers seem to be a suitable potential sorbent material for applications in environmental cleanup, particularly for nuclear plants.
URI: http://doi.org/10.1016/j.cej.2012.09.114
http://hdl.handle.net/11147/1911
ISSN: 1385-8947
1385-8947
1873-3212
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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