Abstract
Functional β-cyclodextrin-attapulgite nanorods (β-CD-APT) were synthesized to remove U(VI) under varied environmental conditions. Adsorption results demonstrated that the removal capacity of β-CD-APT nanorods for U(VI) (51 %) was higher than bare APT (38 %). The thermodynamic data indicated that the adsorption of U(VI) onto β-CD-APT nanorods was an endothermic and spontaneous process. The desorption results showed a reversible hysteresis loop for β-CD-APT, suggesting complete U(VI) desorption could happen without intervention. It is demonstrated that the β-CD-APT nanorods can be a promising material for the preconcentration and solidification of U(VI) in environmental cleanup.
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Acknowledgments
Financial support from Anhui Provincial Natural Science Foundation (1408085MB28), National Natural Science Foundation of China (21207135, 21207136 and 91126020), National “863” Plan (No. 2011AA10A10401) and Hefei Center for Physical Science and Technology (2012FXZY005) are acknowledged.
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Cheng, W., Ding, C., Sun, Y. et al. The sequestration of U(VI) on functional β-cyclodextrin-attapulgite nanorods. J Radioanal Nucl Chem 302, 385–391 (2014). https://doi.org/10.1007/s10967-014-3180-4
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DOI: https://doi.org/10.1007/s10967-014-3180-4