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http://hdl.handle.net/20.500.12358/26180
TitleMetal uptake by porous iminobis (N-2-aminoethylacetamide)-modified polysiloxane ligand system
Untitled
Abstract

A porous solid iminobis(N-2-aminoethylacetamide) polysiloxane ligand system of the general formula P–(CH2)3–N(CH2CONHCH2CH2NH2)2, (where P represents [Si–O]n siloxane network) has been prepared by modification of immobilized diethyliminidiacetate P–(CH2)3N(CH2CO2Et)2 with ethylenediamine in toluene. The new modified polysiloxane system exhibits high potential for the uptake of metal ions (Mn2+, Fe3+, Co2+, Ni2+, Cu2+ and Zn2+). This ligand system shows higher capacity toward the metal ions than its parent iminiodiacetate precursor. Complexation of ligand system for the metal ions at the optimum conditions was found in the order: Cu2+ > Fe3+ > Ni2+ > Co2+ > Mn2+ > Zn2+. Stability studies of the immobilized ligand system show that a degradation of the siloxane network and leaching of some species occurred upon treatment with acid or basic aqueous solutions in addition to metal ion …

Authors
El-Nahhal, Issa M.
El-Ashgar, Nizam M.
Chehimi, Mohamed M.
Bargiela, Pascal
Maquet, Jocelyne
Babonneau, Florence
Livage, Jacques
TypeJournal Article
Date2003
Published inMicroporous and mesoporous materials
SeriesVolume: 65, Number: 2-3
PublisherElsevier
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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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