Titre :

Cobalt sulfide-reduced graphene oxide: An efficient catalyst for the degradation of rhodamine B and pentachlorophenol using peroxymonosulfate

Auteur(s) :

Amirache, Lylia [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Université Abderrahmane Mira [Université de Béjaïa] = University of Béjaïa = جامعة بجاية [UB]
Barka-Bouaifel, Fatiha [Auteur]
Université Abderrahmane Mira [Université de Béjaïa] = University of Béjaïa = جامعة بجاية [UB]
Borthakur, Priyakshree [Auteur]
Academy of Scientific and Innovative Research [Ghaziabad, India] [AcSIR]
Das, Manash R. [Auteur]
Academy of Scientific and Innovative Research [Ghaziabad, India] [AcSIR]
Ahouari, Hania [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Barras, Alexandre [Auteur]
NanoBioInterfaces - IEMN [NBI - IEMN]
Ouddane, Baghdad [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Szunerits, Sabine [Auteur]
NanoBioInterfaces - IEMN [NBI - IEMN]
Boukherroub, Rabah [Auteur]
NanoBioInterfaces - IEMN [NBI - IEMN]

Titre de la revue :

Journal of Environmental Chemical Engineering

Pagination :

106018

Éditeur :

Elsevier

Date de publication :

2021

ISSN :

2213-3437

Mot(s)-clé(s) en anglais :

Cobalt sulfide
Reduced graphene oxide
PMS
Rhodamine B
Pentachlorophenol

Discipline(s) HAL :

Chimie/Catalyse
Sciences de l'environnement/Ingénierie de l'environnement

Résumé en anglais : [en]

In this study, cobalt sulfide-reduced graphene oxide (CoS-rGO) nanocomposite was prepared by a solvothermal route and its structure, morphology and composition were assessed using various techniques, including transmission ...
Lire la suite >In this study, cobalt sulfide-reduced graphene oxide (CoS-rGO) nanocomposite was prepared by a solvothermal route and its structure, morphology and composition were assessed using various techniques, including transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA). The catalytic performance of CoS-rGO was evaluated for activation of peroxymonosulfate (PMS) for the elimination of rhodamine B (RhB) and pentachlorophenol (PCP) in water. The effects of various operating parameters on the degradation efficiency were systematically studied. Under optimized operating conditions, the CoS-rGO/PMS system achieved fast (less than 10 min) elimination of RhB and PCP at room temperature, as evidenced by high-performance liquid chromatographic (HPLC) analysis. Electron Paramagnetic Resonance (EPR) studies along with scavenging experiments revealed that sulfate radicals () were the primary players in the catalytic process. Interestingly, the CoS-rGO catalyst was stable after 8 cycles without obvious activity loss. The results reported in the present study hold promise for potential application of CoS-rGO for PMS activation for the elimination of various organic pollutants.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL