Abstract:The magadiite as a single phase was prepared by a hydrothermal synthesis method in SiO2-NaOH-Na2CO3-H2O system and characterized by Brunauer-Emmett-Teller (BET) method, X-ray diffraction, FT-IR spectroscopy and scanning electron microscope and then the adsorption of Zn2+ onto magadiite from water was examined. The results showed that, magadiite was nonporous material that has surface areas of 19.38 square metres per gram. The best adsorption conditions at 25℃ were obtained: the initial concentration of Zn2+ was 20mg /L, pH = 6, the adsorption of magadiite reached equilibrium at 60min and the adsorption capacity of Zn2+ was 42.55mg/g. In addition, the adsorption kinetics of the magadiite was best described by pseudo-second-order kinetic equation and the adsorption isotherms of the magadiite were fitted with the Langmuir adsorption model. The chemical and physical adsorption processes (mainly chemical process) in metal ions adsorption occur concurrently.