Comparison sorption properties of Eu(III) on titanate nanotubes and rutile studied by batch technique

The titanate nanotubes and rutile are compared to understand the interaction of titanium oxides with Eu(III) ions. The sorption of Eu(III) on solid particle surfaces is dominated by surface properties and crystal structures of solid particles. The uptake of Eu(III) on titanium oxide surfaces occurs quickly at the initial contact time and then takes place on the less active sites and diffusion into the micropore sites of solid particles with increasing contact time. The results are important to evaluate the interaction of Eu(III) at solid-water interface and to understand the physicochemical behavior of Eu(III) in the natural environment. (author)