Sorption isotherms of heavy metal ions onto semi - interpenetrating polymer network cryogels based on polyacrylamide and anionically modified potato starch / Diana Felicia Apopei in Industrial & engineering chemistry research, Vol.51 N° 31 (Août 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol.51 N° 31 (Août 2012) . - pp. 10462-10471 Titre : Sorption isotherms of heavy metal ions onto semi - interpenetrating polymer network cryogels based on polyacrylamide and anionically modified potato starch Type de document : texte imprimé Auteurs : Diana Felicia Apopei, Auteur ; Maria Valentina Dinu, Auteur ; Andrzej W. Trochimczuk, Auteur Année de publication : 2012 Article en page(s) : pp. 10462-10471 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Cryogel Metal ion Heavy metal Adsorption isotherm Résumé : Semi-interpenetrating polymer network (semi-IPN) cryogels based on polyacrylamide (PAAm) and anionically modified potato starch (PA) were synthesized and tested as sorbents for heavy metal ions like: Cu2+, Cd2+, Ni2+, and Zn2+ from aqueous solutions by batch-mode under noncompetitive conditions. Experimental data obtained from batch equilibrium tests have been analyzed using four models: Langmuir, Freundlich, Temkin, and Sips isotherms. The equilibrium data obtained for the sorption of heavy metal ions onto the semi-IPN cryogels were well fitted in the Sips nonlinear regression model with a maximum theoretical sorption capacity of 40.72 mg Cu2+/g composite, 19.27 mg Cd2+/g composite, 9.31 mg Ni2+/g composite, and 7.48 mg Zn2+/g composite. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26234077 [article] Sorption isotherms of heavy metal ions onto semi - interpenetrating polymer network cryogels based on polyacrylamide and anionically modified potato starch [texte imprimé] / Diana Felicia Apopei, Auteur ; Maria Valentina Dinu, Auteur ; Andrzej W. Trochimczuk, Auteur . - 2012 . - pp. 10462-10471. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol.51 N° 31 (Août 2012) . - pp. 10462-10471 Mots-clés : Cryogel Metal ion Heavy metal Adsorption isotherm Résumé : Semi-interpenetrating polymer network (semi-IPN) cryogels based on polyacrylamide (PAAm) and anionically modified potato starch (PA) were synthesized and tested as sorbents for heavy metal ions like: Cu2+, Cd2+, Ni2+, and Zn2+ from aqueous solutions by batch-mode under noncompetitive conditions. Experimental data obtained from batch equilibrium tests have been analyzed using four models: Langmuir, Freundlich, Temkin, and Sips isotherms. The equilibrium data obtained for the sorption of heavy metal ions onto the semi-IPN cryogels were well fitted in the Sips nonlinear regression model with a maximum theoretical sorption capacity of 40.72 mg Cu2+/g composite, 19.27 mg Cd2+/g composite, 9.31 mg Ni2+/g composite, and 7.48 mg Zn2+/g composite. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26234077

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