Magnetic strontium hydroxyapatite (Fe(3)O(4)SiO(2)SrHAp) monodispersed microspheres were successfully synthesized by a hydrothermal method and investigated as a sorbent for the removal of Pb(II) from acidic aqueous solutions. The maximum immobilization capacity was 345 mg.g(-1) for Pb(II) at pH 3.0, and equilibrium was achieved within 120 min. The experimental data followed the Langmuir isotherm model (R-2 = 0.9987), and the kinetic results accorded with the pseudo-second-order model (R-2 = 0.9982). The Pb(II)-loaded magnetic sorbent was easily separated from aqueous solutions using a permanent magnet.