Driving Forces of Cationic Dye Adsorption, Confinement, and Long-Range Correlation in Zeolitic Materials - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Langmuir Année : 2022

Driving Forces of Cationic Dye Adsorption, Confinement, and Long-Range Correlation in Zeolitic Materials

Résumé

Zeolitic materials are commonly used to capture emergent contaminants in water or complex aqueous effluents. The efficiency of this adsorption depends strongly on the guest–host interactions and on the surrounding environment with possible coadsorption of the solvent. Only a few experimental techniques are available to probe in situ the sequestration processes at the solid/liquid interface. We propose in the present work to combine the second harmonic scattering technique with isothermal titration calorimetry in order to investigate the adsorption and the confinement of a hemicyanine dye adsorbed inside faujasite materials. The methodology described here permits the quantification of the correlations between the confined dyes in the material and thus gives local information about the organization at the nanometer scale. Various impacts, such as the effect of the solvent type and the silicon to aluminum ratio of the zeolitic adsorbent, are quantitatively estimated and discussed. This work highlights that the most correlated system matches the higher adsorption capacity associated with the lower entropic contribution.
Fichier principal
Vignette du fichier
Manuscript_final_060122.pdf (1.38 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03554735 , version 1 (03-02-2022)

Identifiants

Citer

Marwa Assaf, Gaelle Martin-Gassin, Benedicte Prelot, Pierre-Marie Gassin. Driving Forces of Cationic Dye Adsorption, Confinement, and Long-Range Correlation in Zeolitic Materials. Langmuir, 2022, 38 (3), pp.1296-1303. ⟨10.1021/acs.langmuir.1c03280⟩. ⟨hal-03554735⟩
48 Consultations
52 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More