Second-Order Kinetic Model for the Sorption of Cu(II) Ions in Aqueous Solutions of Zeolite NaA

Abstract:

In this study, the sorption of Cu(II) ions in aqueous solutions of Zeolite NaA by performing batch kinetic sorption experiments. The equilibrium kinetic data were analyzed using the pseudo-second-order kinetic model. A comparison was made of the linear least-squares method and nonlinear method of the widely used pseudo-second-order kinetic model for the sorption of Cu(II) ions of Zeolite . Four pseudo-second-order kinetic linear equations are discussed. Kinetic parameters obtained from the four kinetic linear equations using the linear method differed but they were the same when using the non-linear method. Kinetic parameters obtained from four kinetic linear equations using the linear method differed. Equation type 1 pseudo-second-order kinetic model very well represented the kinetic of the adsorption Cu(II) ions by Zeolite NaA. Equation type 4 exhibited the worst fit. Present investigation showed that the non-linear method may be a better way to determine the kinetic parameters.

• Periodical: Advanced Materials Research (Volumes 560-561)
• Pages: 1174-1177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.560-561.1174
• Online since: August 2012
• Authors: Dimitar Petrov Georgiev, Bogdan Iliev Bogdanov, Yancho Hristov, Irena Markovska
• Keywords: Adsorption, Kinetic Model, Kinetic Sorption, Zeolite NaA

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DOI: 10.4028/www.scientific.net/amr.560-561.1174