Titre :	Synthesis and characterization of carboxymethylcellulose hydrogels and applicatio, for crystal violet removal from aqueous solution
Type de document :	texte imprimé
Auteurs :	Maria rekia Derdoukh, Auteur ; Safa Fettache, Auteur ; Souad Djellali, Directeur de thèse
Année de publication :	2022
Importance :	1 vol (61 f .)
Format :	29cm
Langues :	Anglais (eng)
Catégories :	Thèses & Mémoires:Chimie
Mots-clés :	Chimie
Index. décimale :	540 Chimie et sciences connexes
Résumé :	In this work, hydrogels based on renewable resources raw materials, namely carboxymethylcellulose (CMC), were elaborated. A cross-linked systems based on CMC are prepared using citric acid as crosslinker then were used for the removal of crystal violet from aqueous solutions. The results indicate that after heating of our systems at 140°C, crosslink systems are obtain and the optimum concentration of citric acid was found to be6% (w/w).The obtention of cross-linked structures were confirmed by SEM images in addition to gel fraction and swelling ratio evaluations. Adsorption tests have shown the great ability of CMC based hydrogel to adsorb the cationic dye Methyl violet.
Côte titre :	MACH/0285

Synthesis and characterization of carboxymethylcellulose hydrogels and applicatio, for crystal violet removal from aqueous solution [texte imprimé] / Maria rekia Derdoukh, Auteur ; Safa Fettache, Auteur ; Souad Djellali, Directeur de thèse . - 2022 . - 1 vol (61 f .) ; 29cm.
Langues : Anglais (eng)

Catégories :	Thèses & Mémoires:Chimie
Mots-clés :	Chimie
Index. décimale :	540 Chimie et sciences connexes
Résumé :	In this work, hydrogels based on renewable resources raw materials, namely carboxymethylcellulose (CMC), were elaborated. A cross-linked systems based on CMC are prepared using citric acid as crosslinker then were used for the removal of crystal violet from aqueous solutions. The results indicate that after heating of our systems at 140°C, crosslink systems are obtain and the optimum concentration of citric acid was found to be6% (w/w).The obtention of cross-linked structures were confirmed by SEM images in addition to gel fraction and swelling ratio evaluations. Adsorption tests have shown the great ability of CMC based hydrogel to adsorb the cationic dye Methyl violet.
Côte titre :	MACH/0285