Mesoporous Aluminosilicate as Effective Adsorbent for Radionuclides and Toxic Metal Ions

Mesoporous aluminosilicates, have been prepared with various mole ratios of Si/Al and Cethyltrimethylammonium bromide (CTAB).They have been characterized by XRD, nitrogen adsorption/desorption measurements and thermogravimetry. Sorption of radionuclides and toxic metal ions on this adsorbent have been studied. The results show that adsorption of Ce(III), Cr(III), Fe(III), Te(IV ), Tl(I), La(III) and Th(IV) increases significantly by incorporation of aluminum ions in the framework of the adsorbents. Separation of Sr(II)-Ce(III), Sr(II)- U(VI) and Cd(II)-Ce(III) have been developed on columns of this adsorbent.

کلیدواژه ها:

mesoporous ، aluminosilicate ، adsorption ، toxic metal ions