Interaction of Actinides with Natural Microporous Materials

Structural Study of Polystyrene-b-poly(acrylic acid) Micelles Complexed with Uranyl: A SAXS Core–Shell Model Analysis

“…The interactions between UO 2 2+ or its complexes and natural matter include several types of chemical and physical processes: absorption/ion-exchange, adsorption/surface sorption, surface precipitation, complexation, or formation of colloids. − In particular, the absorption/ion-exchange between uranyl cations and the compensation ions in clay interlayers has been extensively investigated. ,− A recent grazing-incidence X-ray scattering study of vanadium­(IV) hydroxide/clay-colloid films, in which V­(IV) was used as a substitute for Pu­(IV), supports the view that stable mineral colloids could affect the transport of actinide contaminants . In a natural environment, the situation is further complicated due to the presence of other co-contaminants including natural organic matter (NOM) in colloidal form.…”