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http://hdl.handle.net/20.500.12358/26179
TitleSynthesis, characterization and applications of immobilized iminodiacetic acid-modified silica
Untitled
Abstract

Porous immobilized iminodiacetic acid modified silica of the general formula S—(CH2)3—N(CH2COOH)2, (where S represents [Si—O] n siloxane network) has been prepared by replacement of the iodide in 3-iodopropyl modified silica with diethyliminodiacetate. The immobilized-diethyliminodiacetate ligand system (S-DIDA) was then hydrolyzed by hydrochloric acid to produce the immobilized iminodiacetic acid ligand system (S-IDA). The iodo functionalized modified silica (S-I) was prepared by polycondensation of Si(OEt)4 and (MeO)3Si(CH2)3I. The XPS and CP/MAS 13C NMR spectra showed that not all iodine atoms are replaced and that the hydrolysis of ethyl acetate groups are incomplete upon treatment with HCl. The immobilized iminodiacetic acid ligand system exhibits high potential for the uptake of various di- and trivalent metal ions such as (Mn2+, Fe3+, Co2+, Ni2+, Cu2 …

Authors
El-Nahhal, Issa M.
Zaggout, Farid R.
Nassar, Mona A.
El-Ashgar, Nizam M.
Maquet, Jocelyne
Babonneau, Florence
Chehimi, Mohamed M.
TypeJournal Article
Date2003
Subjects
diethyliminodiacetate ligand
immobilized silica
metal uptake
iminodiacetic acid
modified silica
Published inJournal of sol-gel science and technology
SeriesVolume: 28, Number: 2
PublisherKluwer Academic Publishers
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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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