The capture of radionuclides by porous materials

Capture of radionuclides is needed because the utilization of radionuclides is still growing and it is necessary to avoid the contamination of environmental. In this article the sorption material is represented by hydroxyapatite (pure or doped with Ag/Ba), composite material (hydroxyapatite in polyacrylonitrile) and macroporous material SiO₂-PS-TODGA. These materials were characterized by measurement of surface area. Radionuclides capture was tested on small column which contained one of the tested materials. For washing of column was used the distilled water. Like a representative of radionuclide was used ²²³Ra. Sorption properties were tested for ⁸⁷Sr, ¹⁵²Eu and ¹³7Cs. (authors)