Surface Complexation Modeling of Yb(III) and Cs(I) Sorption on Silica.
A surface complexation model is used to describe sorption of ytterbium and cesium on the silica surface. The constant capacitance model gives the description of the solid-solution interface chosen for this work. The first step in the modeling consists of extracting the surface acidity constants. The result is: The second step consists of the extraction of surface complexation constants for both ytterbium and cesium. The sorption of the cations is represented as follows: for the ytterbium sorption, for the cesium sorption, In the case of cesium, the sorption of sodium is competitive and has to be considered: Copyright 1999 Academic Press.
Marmier
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Faculté des Sciences, University of Reims, Reims Cedex 2, 51687, France
Delisée
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Fromage
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