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Separation Science and Technology Volume 48, 2013 - Issue 9
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Research Article

1-(Pyridin-2-yl) Imine Functionalized Silica Gel: Synthesis, Characterization, and Preliminary Use in Metal Ion Extraction

Smaail Radi1 LCAE, Chemistry Department, Sciences Faculty, Mohamed the First University, Oujda, Morocco;2 Centre de l'Oriental des Sciences et Technologies de l'eau (COSTE), Université Med I, Oujda, MoroccoCorrespondence[email protected]
,
Yahya Toubi1 LCAE, Chemistry Department, Sciences Faculty, Mohamed the First University, Oujda, Morocco
,
Maryse Bacquet3 Université des Sciences et Technologies de Lille, UMET: Unité Matériaux et Transformations, Equipe Ingénierie des Systèmes Polymères, Bâtiment C6 salle Villeneuve d'Ascq, France
,
Stéphanie Degoutin3 Université des Sciences et Technologies de Lille, UMET: Unité Matériaux et Transformations, Equipe Ingénierie des Systèmes Polymères, Bâtiment C6 salle Villeneuve d'Ascq, France
&
Francine Cazier4 Université Lille Nord de France, Lille, Unité de Chimie Environnementale et Interactions sur le Vivant, ULCO, Dunkerque, France
Pages 1349-1355 | Received 03 Jun 2012, Accepted 28 Aug 2012, Published online: 02 May 2013
 
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Abstract

A new silica gel material covalently bonded with 1-(pyridin-2-yl) imine (SiNPn) was synthesized and well characterized by elemental analysis, FT–IR, 13C NMR of the solid state, nitrogen adsorption-desorption isotherm, BET surface area, B.J.H. Pore sizes, thermogravimetry curves (TGA), and scanning electron microscope (SEM). The new chelating surface exhibits good chemical and thermal stability. The adsorption capabilities of this new system towards toxic metal ions (Hg2+, Cd2+, Pb2+, and Zn2+) were investigated using the batch method. The percentage limits of extraction were determined by atomic absorption measurements.

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