Abstract
A dihydroimidazole functionalized magnetic mesoporous silica with core–shell structure was fabricated, aiming to convenient remove U(VI) from aqueous solution. The batch sorption tests revealed that this material is indeed an effective U(VI) sorbent with fast sorption kinetics of less than 2 h, large sorption capacity of more than 100 mg/g at pH 5.5 ± 0.1, and desirable selectivity towards U(VI) ions over a range of competing metal ions. The sorbent can be readily separated from solution by simply adding an external magnetic field.
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Acknowledgments
This work was supported by the Natural Science Foundation of China (Grants 21471153, 11275219, 91326202, and U1432103 and 91426302) and the “Strategic Priority Research program” of the Chinese Academy of Sciences (Grants XDA030104). This work is also supported by a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Zhu, L., Yuan, LY., Xia, LS. et al. Incorporation of magnetism into the dihydroimidazole functionalized mesoporous silica for convenient U(VI) capture. J Radioanal Nucl Chem 308, 447–458 (2016). https://doi.org/10.1007/s10967-015-4391-z
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DOI: https://doi.org/10.1007/s10967-015-4391-z