Benmansour, Yasmine2022-10-262022-10-262022-07-12salle des thèsesDOC-543-19-01https://dspace.univ-tlemcen.dz/handle/112/19367This work focuses on the study of solid phase extraction of UO2 2+ using organic and inorganic materials. The characterization of these materials is made by FTIR spectroscopy, SEM scanning electron microscopy, X-ray diffraction DRX and BET. The optimal conditions for the extraction of UO22+ were determined by studying the influence of the parameters (pH, contact time, initial concentration of UO2 2+ ions, etc.). In order to evaluate the performance of the extractants used, we studied the thermodynamic, kinetic and diffusional aspect of uranyl sorption in the solid phases. Finally, a study by a fractional factorial plan was carried out to show the influence of each parameter dependently and independently.frUranyl(II), Liquid-solid extraction, Organic and inorganic materials, Kinetics, Diffusion, Thermodynamics, ModelingUranyle(II), Extraction liquide-solide, Matériaux organiques et inorganiques, Cinétique, Diffusion, Thermodynamique, Modélisation.Thesis