In this paper,the natural illite is used as low-cost sorbent for investigating the sorption of Th(IV).
) and are calculated from the temperature-dependent sorption data and the results indicate that the sorption of Th(IV) on natural illite was a spontaneous process. Isotherms of Th(IV) adsorption to natural illite could be described well by Langmuir model. Through the desorption experiments, the adsorption process on natural illite was reversible reaction. The sorption mechnism of Th(IV) on natural illite is ion exchange reaction with its potassium ions that are trapped in its interlayer
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