Abstract
CeO2 solids of different surface areas have been prepared by a sol–gel method using Triton X-100. The samples have then characterized by N2 adsorption, XRD, SEM microscopy and FTIR spectroscopy. Furthermore, the effect of the surface area on the U(VI) adsorption was investigated by batch-type experiments and evaluated by correlating the surface parameters with the corresponding maximum adsorption capacity values (0.108 < qmax < 0.162 mg g−1). The adsorption of U(VI) by CeO2 is well described by the Langmuir isotherm model indicating simple interaction between the U(VI) ions and the surface hydroxyl groups.
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