In this work, a model for the description of metallic ions adsorption onto activated carbon is presented. The model starts from an evaluation of ion speciation and considers the presence of both the acid-basic sites and nucleophilic/electrophilic active sites on the activated carbon. Moreover, the multi-component Langmuir model is considered. The model has been used to correlate available experimental data on the adsorption of As(V), Cd(II), Cr(III) and Cr(VI) ions on activated carbon. A good matching between experimental results and model predictions has been obtained for all the investigated conditions.
Adsorption of metallic ions from aqueous solutions onto activated carbons: a descriptive model / DI NATALE, Francesco; Erto, Alessandro; Lancia, Amedeo; Musmarra, D.. - STAMPA. - (2007), pp. 321-321. (Intervento presentato al convegno 9th International conference on Fundamental of Adsorption tenutosi a Giardini Naxos nel 20-25 Maggio 2007).
Adsorption of metallic ions from aqueous solutions onto activated carbons: a descriptive model
DI NATALE, Francesco;ERTO, ALESSANDRO;LANCIA, AMEDEO;
2007
Abstract
In this work, a model for the description of metallic ions adsorption onto activated carbon is presented. The model starts from an evaluation of ion speciation and considers the presence of both the acid-basic sites and nucleophilic/electrophilic active sites on the activated carbon. Moreover, the multi-component Langmuir model is considered. The model has been used to correlate available experimental data on the adsorption of As(V), Cd(II), Cr(III) and Cr(VI) ions on activated carbon. A good matching between experimental results and model predictions has been obtained for all the investigated conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
