Removal of tiemonium methylsulfate, from aqueous solutions using activated carbon prepared from date stones - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Particulate Science and Technology Année : 2019

Removal of tiemonium methylsulfate, from aqueous solutions using activated carbon prepared from date stones

Résumé

The retention of a pharmaceutical compound, tiemonium methylsulfate (TIM), from aqueous solutions by adsorption onto activated carbon prepared from date stones (AC–DS) was investigated. Physical and chemical characteristics of this material were also determined. Results showed that pH 8 was optimal for TIM adsorption. Among the kinetic models considered, the pseudo-second-order model was the most appropriate to describe experimental data. Regarding adsorption isotherms, it was shown that the Sips model accurately describe the sorption of TIM onto AC–DS with a correlation factor R2 > 0.98. The adsorption capacity of AC–DS was found to be 42.2 mg g−1 at 10°C and 60.5 mg g−1 at 25°C, confirming its efficiency for the removal of this compound from aqueous solutions. The values of ΔG0 and ΔH0 confirmed that the adsorption of TIM onto AC–DS was spontaneous and endothermic in nature and hence more effective at high temperatures. An irregular increase in the randomness was suggested at the AC–DS solution interface during the adsorption process for positive values of ΔS0.

Domaines

Chimie
Fichier principal
Vignette du fichier
Agueniou et al. - 2017 - Removal of tiemonium methylsulfate, from aqueous s.pdf (1.45 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01954263 , version 1 (24-01-2019)

Identifiants

Citer

Fazia Agueniou, Derradji Chebli, Abdallah Bouguettoucha, Abdelbaki Reffas, Mohammed Lamine Sekirifa, et al.. Removal of tiemonium methylsulfate, from aqueous solutions using activated carbon prepared from date stones. Particulate Science and Technology, 2019, 37 (2), pp.190-199. ⟨10.1080/02726351.2017.1360972⟩. ⟨hal-01954263⟩
46 Consultations
177 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More