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Kinetics of isothermal nicotine adsorption from the aqueous solution onto the USY zeolite / Natasa Lazarevic in Industrial & engineering chemistry research, Vol. 49 N° 14 (Juillet 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 14 (Juillet 2010) . - pp. 6302-6308 Titre : Kinetics of isothermal nicotine adsorption from the aqueous solution onto the USY zeolite Type de document : texte imprimé Auteurs : Natasa Lazarevic, Auteur ; Jelena Jovanovic, Auteur ; Milutin Jevremovic, Auteur Année de publication : 2010 Article en page(s) : pp. 6302-6308 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Zeolite  Aqueous  solution  Adsorption  Kinetics Résumé : The kinetics of isothermal adsorption of nicotine from an aqueous solution onto hydrophobic zeolite type USY was investigated. The adsorption isotherms of nicotine on zeolite type USY were measured in the temperature range from 298 to 322 K. Specific shape parameters of the adsorption degree curves were determined. The changes in the specific shape parameters of the adsorption degree curves with temperature and the kinetic parameters of nicotine adsorption (Ea, In A) were determined. The kinetic model of nicotine adsorption, [I - (1 - α)1/2] = kt, was established by using the model-fitting method. It was found that the nicotine adsorption was a kinetically controlled process which was determined by the rate of bidimensional movement of the boundary layer of the adsorption phase. Nicotine is most probably chemisorbed onto the acidic centers of zeolite type USY. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23040383 [article] Kinetics of isothermal nicotine adsorption from the aqueous solution onto the USY zeolite [texte imprimé] / Natasa Lazarevic, Auteur ; Jelena Jovanovic, Auteur ; Milutin Jevremovic, Auteur . - 2010 . - pp. 6302-6308. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 14 (Juillet 2010) . - pp. 6302-6308 Mots-clés : Zeolite  Aqueous  solution  Adsorption  Kinetics Résumé : The kinetics of isothermal adsorption of nicotine from an aqueous solution onto hydrophobic zeolite type USY was investigated. The adsorption isotherms of nicotine on zeolite type USY were measured in the temperature range from 298 to 322 K. Specific shape parameters of the adsorption degree curves were determined. The changes in the specific shape parameters of the adsorption degree curves with temperature and the kinetic parameters of nicotine adsorption (Ea, In A) were determined. The kinetic model of nicotine adsorption, [I - (1 - α)1/2] = kt, was established by using the model-fitting method. It was found that the nicotine adsorption was a kinetically controlled process which was determined by the rate of bidimensional movement of the boundary layer of the adsorption phase. Nicotine is most probably chemisorbed onto the acidic centers of zeolite type USY. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23040383