Title :

Organically Modified Silica with Pyrazole-3-carbaldehyde as a New Sorbent for Solid-Liquid Extraction of Heavy Metals

Author(s) :

Radi, Smaail [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Tighadouini, Saïd [Auteur]
Université Mohammed Premier [Oujda] = Université Mohammed Ier
Bacquet, maryse [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Degoutin, Stephanie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Cazier, Francine [Auteur]
Unité de Chimie Environnementale et Interactions sur le Vivant [UCEIV]
Zaghrioui, Mustapha [Auteur]
GREMAN (matériaux, microélectronique, acoustique et nanotechnologies) [GREMAN]
Mabkhot, Yahia Nasser [Auteur]
King Saud University [Riyadh] [KSU]

Journal title :

Molecules

Volume number :

19

Pages :

247-262

Publication date :

2014

English keyword(s) :

chemically modified SiO2
synthesis
characterization
adsorption
Pb(II)
Cd(II)
Cu(II)
Zn(II)

HAL domain(s) :

Sciences de l'ingénieur [physics]/Matériaux
Sciences de l'ingénieur [physics]/Génie des procédés
Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

A new chelating matrix, SiNP, has been prepared by immobilizing 1.5-dimethyl-1H-pyrazole-3-carbaldehyde on silica gel modified with 3-aminopropyl-trimethoxysilane. This new chelating material was well characterized by ...
Show more >A new chelating matrix, SiNP, has been prepared by immobilizing 1.5-dimethyl-1H-pyrazole-3-carbaldehyde on silica gel modified with 3-aminopropyl-trimethoxysilane. This new chelating material was well characterized by elemental analysis, FT-IR spectroscopy, cross polarization magic angle spinning solid state 13C-NMR, nitrogen adsorption-desorption isotherm, BET surface area, BJH pore size, and scanning electron microscopy (SEM). The new product exhibits good chemical and thermal stability as determined by thermogravimetry curves (TGA). The new prepared material was used as an adsorbent for the solid-phase extraction (SPE) of Pb(II), Cd(II), Cu(II) and Zn(II) from aqueous solutions using a batch method, prior to their determination by flame atomic adsorption spectrometry. The adsorption capacity was investigated using kinetics and pH effects. Common coexisting ions did not interfere with separation and determination.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2019-05-16T16:01:08Z
2020-04-16T13:11:11Z