Incorporation of Ni(II)-dimethylglyoxime ion-imprinted polymer into electrospun polysulphone nanofibre for the determination of Ni(II) ions from aqueous samples

Journal article

Authors / Editors

Research Areas

No matching items found.

Publication Details

Author list: Rammika M, Darko G, Torto N

Publisher: Water Research Commission

Place: PRETORIA

Publication year: 2011

Journal acronym: WATER SA

Volume number: 37

Issue number: 4

Start page: 539

End page: 546

Number of pages: 8

ISSN: 0378-4738

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

Ni(II)-dimethylglyoxime ion-imprinted polymer (Ni(II)-DMG IIP) was encapsulated in polysulphone and electrospun into nanofibres with diameters ranging from 406 to 854 nm. The structures of the Ni(II)-DMG encapsulated-IIP nanofibre, non-imprinted encapsulated-polymer nanofibre and polysulphone nanofibre mats were observed by scanning electron microscopy and evaluated by infrared spectroscopy. Electrospinning increased the specific surface area of the Ni(II)-DMG encapsulated-IIP nanofibre mats, as was evidenced by the low masses of the Ni(II)-DMG encapsulated-IIP nanofibre mats used. The accuracy of the method was validated by analysing a custom solution of certified reference material (SEP-3); the concentration of Ni(II) obtained was close to the certified one. The limit of detection was found to be 4.0x10(-4) mu g.ml(-1) while the limit of quantification was found to be 1.2x10(-3) mu g.ml(-1). The recovery of Ni(II) achieved using the Ni(II)-DMG imprinted nanofibre mats in water samples was found to range from 83 to 89%, while that of non-imprinted nanofibre mats was found to range from 59 to 65%, and that of polysulphone from 55 to 62%.

Keywords

aqueous samples, electrospun encapsulated imprinted polymer nanofibres, recovery

Documents

No matching items found.