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Abstract
This study focused on the synthesis of mesoporous aluminosilica monoliths to be used as highly sensitive adsorbents for the removal of U(IV) ions from aqueous solutions. The adsorbents are prepared through functional immobilization of 3-glycidoxypropyltrimethoxysilane (GPS) followed by a nitrogen containing ligand. SEM, TEM, SAXS, nitrogen adsorption, TGA, TDA, and elemental analysis were used to characterize the prepared mesoporous adsorbent. The uptake behavior of the modified aluminosilica toward U(VI) under different experimental conditions of pH, time, and concentration was studied. Based on our results, these unique features of the adsorbents allow highly efficient removal of U(IV) ions from liquid nuclear waste.
Acknowledgments
Author would like to thank Prof. Sherif El-Safty, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan, for his support and encouragement during this work.