Issue 8, 2003
From the journal:

New Journal of Chemistry

Immobilization of pyrazole compounds on silica gels and their preliminary use in metal ion extraction

Smaail Radi,a   Abdelkrim Ramdani,a   Yahya Lekchiri,b   Michel Morcellet,*c   Grégorio Crini,c   Ludovic Janusc  and  Maryse Bacquetc  

* Corresponding authors

a Laboratoire de Chimie Organique Physique, Département de Chimie, Université Mohamed 1er, Oujda, Maroc

b Laboratoire de Biochimie, Département de Biologie, Université Mohamed 1er, Oujda, Maroc

c Laboratoire de Chimie Macromoléculaire, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq, France
E-mail: michel.morcellet@univ-lille1.fr

Abstract

A series of acyclic pyrazole derivatives was prepared by condensation reactions. These compounds were covalently immobilized on silica gel through a flexible 3-glycidoxypropyltrimethoxysilane spacer arm. These materials were used as sorbents for the recovery of heavy and alkali metal ions from aqueous solutions. They exhibit good selectivity between heavy metal ions and alkali ions with an affinity especially high towards mercury. The comparison with liquid-liquid extraction shows that the capacity is not affected by the grafting of the pyrazole rings on the surface of silica. In addition, the solid-liquid process is more convenient in terms of facility of use.

Graphical abstract: Immobilization of pyrazole compounds on silica gels and their preliminary use in metal ion extraction

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Article information

DOI
https://doi.org/10.1039/B301111A
Article type
Paper
Submitted
27 Jan 2003
Accepted
31 Mar 2003
First published
30 Jun 2003

New J. Chem., 2003,27, 1224-1227

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Immobilization of pyrazole compounds on silica gels and their preliminary use in metal ion extraction

S. Radi, A. Ramdani, Y. Lekchiri, M. Morcellet, G. Crini, L. Janus and M. Bacquet, New J. Chem., 2003, 27, 1224 DOI: 10.1039/B301111A

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