Titre :

Titanium and iron modified delaminated muscovite as photocatalyst for enhanced degradation of Tetrabromobisphenol A by visible light

Auteur(s) :

Touaa, Nesrine [Auteur]
Bouberka, Zohra [Auteur]
Gherdaoui, Chems-Eddine [Auteur]
Supiot, Philippe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Roussel, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Pierlot, Christel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Maschke, Ulrich [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Titre de la revue :

Functional Materials Letters

Nom court de la revue :

Funct. Mater. Lett.

Numéro :

13

Pagination :

2051008

Éditeur :

World Scientific Pub Co Pte Lt

Date de publication :

2020-02-26

Discipline(s) HAL :

Chimie/Matériaux
Chimie/Polymères

Résumé en anglais : [en]

A new heterostructured titanium–iron-based material dispersed in alkaline muscovite (Ti–Fe–Mus) was synthesized by a typical impregnation process, and characterized by X-ray diffraction, adsorption/desorption of liquefied ...
Lire la suite >A new heterostructured titanium–iron-based material dispersed in alkaline muscovite (Ti–Fe–Mus) was synthesized by a typical impregnation process, and characterized by X-ray diffraction, adsorption/desorption of liquefied nitrogen and thermogravimetric/differential thermal analysis. This characterization suggests that the Ti–Fe–Mus system does not present sufficiently ordered silicate layers, but has a delaminated structure. The specific surface area and porosity have been significantly improved compared to the virgin muscovite, and the outer surface appears to be the dominant active surface. In particular, the Ti–Fe–Mus system was examined as a photocatalyst for the degradation of Tetrabromobisphenol A (TBBPA) selected as a model compound by visible light exposure. The Ti–Fe–Mus system showed excellent photocatalytic activity for TBBPA degradation and optimum catalyst concentration was found at 0.4[Formula: see text]g L[Formula: see text]. More than 60% by weight of parent TBBPA with an initial concentration of 300[Formula: see text]ppm were eliminated after 120[Formula: see text]min at [Formula: see text]. Acid conditions have resulted in a faster elimination compared to alkaline and neutral conditions. Based on these results, it has been shown that titanium and iron modified delaminated muscovite (Ti–Fe–Mus) have strong potential for application as a powerful photocatalyst for the elimination of persistent organic pollutants present in the environment.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Non spécifiée

Établissement(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Ingénierie des Systèmes Polymères

Date de dépôt :

2019-12-16T18:59:41Z
2019-12-17T08:45:45Z
2019-12-17T15:32:35Z
2019-12-17T15:38:28Z