[Preparation of Mg-Al-Me(Me=La, Ce, Zr) Composite Oxides for Efficient Fluoride Uptake].

The Mg-Al-Me(Me=La, Ce, Zr) composites were prepared by co-precipitation method of Mg, Al, Me(Me=La, Ce, Zr) salt solutions with a molar ratio of 20:1:4. The sample were calcined at 500℃ for 5h as the adsorbents for removal of fluoride. The adsorbents were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD).