CONSIDERACIONES CINÉTICAS DE LA ADSORCIÓN DE IONES URANILO EN DIÓXIDO DE SILICIO AMORFO

Abstract

This paper is concerned with the kinetics of uranyl ion adsorption by the amorphous silicon dioxide. The analytical data were approached from following kinetics models: First-order kinetic model, Pseudosecond order kinetic model, Elovich kinetic model, intraparticle model, Bangham model and liquid films diffusion model. The Second-order kinetic model was shown to be the best fit for the description of uranyl adsorption. Keywords: adsorption, kinetics, uranyl ions, silicon dioxide.

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