Separation of radionuclides on mesoporous zirconium silicate: A novel sorbent

Five different samples of mesoporous zirconium silicate have been prepared with various mole ratios of Si/Zr and Cetyltrimethylammonium bromide (CTMABr) as template. XRD, nitrogen sorption, SEM, IR, thermogravimetry and sorption of radionuclides have been studied. Separation of Cs(I)-Mo(VI), Sr(II)-Mo(VI), Cs(I)-Th(IV), Sr(II)-Th(IV), and Tl(I)-Th(IV) have been developed on columns of this novel sorbent.