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Cs+ immobilization by designed micaceous adsorbent under subcritical conditions

AutorOsuna, Francisco J. ; Cota, Agustín; Pavón, Esperanza ; Pazos, M. Carolina ; Alba, María D.
Palabras claveCesium immobilization
Adsorption
Microporous
Synthetic mica
Fecha de publicación2017
EditorElsevier
CitaciónApplied Clay Science 143: 293- 299 (2017)
ResumenThe adsorption of Cs+ by clay minerals is a complicate process, being cation exchange and frayed-edge sites the major mechanisms that govern it. However, environmental variables have a significant impact on the process. In this work, the influence of the temperature and time in the cesium adsorption capacity of Na-Mica-n (n=2 and 4) have been explored under subcritical conditions. Those synthetic micas were able to immobilize cations Cs+ combining adsorption at nonspecific sites, at specific sites and chemical reaction. The distribution constant of Cs+ was larger in the Na-Mica-2 denoting a higher concentration of specific adsorption sites when layer charge decreased.
URIhttp://hdl.handle.net/10261/156086
DOI10.1016/j.clay.2017.03.041
Identificadoresdoi: 10.1016/j.clay.2017.03.041
issn: 0169-1317
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