抄録
The objective of this study was to synthesize layered titanate to efficiently and irreversibly adsorb strontium(II) (Sr(II)) from brackish water. At a NaCl background ion concentration of 0.01 mol/L, synthesized layered titanate demonstrated an approximately thirty-fold higher maximum Sr(II) adsorption capability than an anatase precursor. The increase in NaCl concentration to 0.1 mol/L decreased the Sr (II) adsorption capability by ～ 20 ％ , but still showed a high Sr(II) adsorption capability. It was also demonstrated that the adsorption of Sr(II) induces a structural deformation of the layered structure and that the adsorbed Sr(II) was trapped in the interlayer, resulting in an irreversible Sr(II) adsorption.
