Removal of chlorinated volatile organic compounds onto natural and Cu-modified zeolite: The role of chemical surface characteristics in the adsorption mechanism - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Separation and Purification Technology Année : 2021

Removal of chlorinated volatile organic compounds onto natural and Cu-modified zeolite: The role of chemical surface characteristics in the adsorption mechanism

Héctor Valdés
  • Fonction : Auteur
  • PersonId : 1082964
Andrés L Riquelme
  • Fonction : Auteur
Víctor A Solar
  • Fonction : Auteur

Résumé

In this study, the effect of chemical surface characteristics of natural and Cu-modified zeolite in the adsorption of chlorinated volatile organic compounds (VOCCls) was investigated using infrared spectroscopy. A natural zeolite mainly comprised of clinoptilolite and mordenite was used as a parent material. A succession of chemical and thermal treatments produced a Cu-modified natural zeolite (NZ-Cu) with higher adsorption properties toward the elimination of VOCCls. The adsorption of VOCCls onto NZ-Cu zeolite could be explained by a surface mechanism that comprises the interaction not only with Brønsted acid sites present on the original natural zeolite framework; but also with new Brønsted acid sites formed after the successive treatments.

Domaines

Catalyse
Fichier principal
Vignette du fichier
Submitted MS.pdf (1.9 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03024978 , version 1 (26-11-2020)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Héctor Valdés, Andrés L Riquelme, Víctor A Solar, Federico Azzolina-Jury, Frederic Thibault-Starzyk. Removal of chlorinated volatile organic compounds onto natural and Cu-modified zeolite: The role of chemical surface characteristics in the adsorption mechanism. Separation and Purification Technology, 2021, 258, pp.118080. ⟨10.1016/j.seppur.2020.118080⟩. ⟨hal-03024978⟩
100 Consultations
131 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More