Titre :

Carboxymethyl β-Cyclodextrin Assistance for the 4-Nitrophenol Reduction Using Cobalt-Based Layered Double Hydroxides.

Auteur(s) :

Demeester, A. [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Douma, Fatima [Auteur]
UCCS Équipe Catalyse Supramoléculaire [CASU]
Cousin, R. [Auteur]
Unité de Chimie Environnementale et Interactions sur le Vivant [UCEIV]
Siffert, S. [Auteur]
Unité de Chimie Environnementale et Interactions sur le Vivant [UCEIV]
Pourceau, G. [Auteur]
Laboratoire de Glycochimie, des Antimicrobiens et des Agro-ressources - UMR CNRS 7378 [LG2A ]
Wadouachi, A. [Auteur]
Laboratoire de Glycochimie, des Antimicrobiens et des Agro-ressources - UR UPJV 7378 [LG2A]
Ponchel, Anne [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Monflier, Eric [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Noel, Sebastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]

Titre de la revue :

Int J Mol Sci

Nom court de la revue :

Int J Mol Sci

Numéro :

25

Pagination :

6390

Date de publication :

2024-06-28

ISSN :

1422-0067

Mot(s)-clé(s) en anglais :

layered double hydroxides
carboxymethyl beta-cyclodextrin
cobalt
nitroaromatics

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

Cobalt-aluminum-layered double hydroxides containing carboxymethyl β-cyclodextrin (CMβCD) were synthesized by coprecipitation and evaluated as a cobalt source for the 4-nitrophenol reduction in an aqueous medium. Several ...
Lire la suite >Cobalt-aluminum-layered double hydroxides containing carboxymethyl β-cyclodextrin (CMβCD) were synthesized by coprecipitation and evaluated as a cobalt source for the 4-nitrophenol reduction in an aqueous medium. Several physicochemical techniques (XRD, FTIR, TGA) indicated the intercalation of the anionic cyclodextrin without damages to the hydrotalcite-type structure. These lamellar cobalt-aluminum hybrid materials (CoAl_CMβCD) were evaluated in the 4-nitrophenol reduction and showed higher activities in comparison with the CMβCD-free standard material (CoAl_CO3). To rationalize these results, a set of experimental controls going from physical mixtures of CoAl_CO3 with different cyclodextrins to other cobalt-based materials were investigated, highlighting the beneficial effects of both the layered double hydroxide and CMβCD-based hybrid structures. CMβCD also showed a beneficial effect as an additive during the 4-nitrophenol reduction. CoAl_CO3, dispersed in a fresh CMβCD solution could be re-used for five successive cycles without the loss of activity.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Date de dépôt :

2024-07-23T21:02:16Z
2024-08-23T09:38:29Z
2024-08-23T09:39:47Z