CI was used as precursor for the development of new adsorbents for U(VI) removal. CI has an excellent selective property to U(VI) adsorption by nature. The stem of CI has a good adsorption capacity compared to the leaf and root of CI. The unpolluted CI showed its superiority in adsorption capacity than the polluted CI. The MgCl2/H2O2 is found to be more effective than CaCl2 and MgCl2 for CI modification.