Sorption Interaction of U(VI) Ions with Hydroxyapatite Nanoparticles in Different Textural Organizations

The interaction of U(VI) with natural and synthesized hydroxyapatite Ca5(PO4)3(OH) is of interest for the retention of uranium migrating in the environment from various sources of anthropogenic pollution. Another potential application of hydroxyapatite is its use as a carrier for radiopharmaceuticals. In this case, in addition to the parameters of the uranium sorption onto the sorbent surface, it is necessary to study the influence of the structural features of hydroxyapatite nanoparticles on the 230U retention on the sorbent surface. This study deals with the kinetic parameters and mechanisms of uranium sorption onto three textural modifications of hydroxyapatite, with the nanopID morphology before and after sorption, and with the strength of uranium retention on hydroxyapatite. The patterns obtained are of interest from both medical and radioecological viewpoints.