Documents disponibles écrits par cet auteur

Effect of thermal activaton on the exchange behavior of aipo4 toward cu2+ ions / Syed Mustafa in Industrial & engineering chemistry research, Vol. 47 n°15 (Août 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5427-5432 Titre : Effect of thermal activaton on the exchange behavior of aipo4 toward cu2+ ions Type de document : texte imprimé Auteurs : Syed Mustafa, Auteur ; Muhammad Javid, Auteur ; Muhammad Iqbal Zaman, Auteur Année de publication : 2008 Article en page(s) : p. 5427-5432 Note générale : Bibliogr. p. 5432 Langues : Anglais (eng) Mots-clés : Cu2+  ion  adsorption;  Titration  studies;  Freundlich  equation Résumé : Cu2+ ion adsorption and potentiometric titration studies were carried out on AlPO4 as a function of pH, temperature, and activation. Two different samples thermally treated at 105 and 400 °C were employed for the sorption and potentiometric titration studies. The dissociation constant values (pKa) showed an increase with thermal activation, indicating a decrease in the surface acidity of AlPO4. Cu2+ ion adsorption was found to increase with pH, temperature, and thermal activation of the solid. The Freundlich equation was found to be applicable to the sorption data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie070533h [article] Effect of thermal activaton on the exchange behavior of aipo4 toward cu2+ ions [texte imprimé] / Syed Mustafa, Auteur ; Muhammad Javid, Auteur ; Muhammad Iqbal Zaman, Auteur . - 2008 . - p. 5427-5432. Bibliogr. p. 5432 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5427-5432 Mots-clés : Cu2+  ion  adsorption;  Titration  studies;  Freundlich  equation Résumé : Cu2+ ion adsorption and potentiometric titration studies were carried out on AlPO4 as a function of pH, temperature, and activation. Two different samples thermally treated at 105 and 400 °C were employed for the sorption and potentiometric titration studies. The dissociation constant values (pKa) showed an increase with thermal activation, indicating a decrease in the surface acidity of AlPO4. Cu2+ ion adsorption was found to increase with pH, temperature, and thermal activation of the solid. The Freundlich equation was found to be applicable to the sorption data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie070533h