Abstract
The removal of 90Sr in liquid radioactive wastes is an important issue for waste disposal. In this paper, mesoporous silica SBA-15 (Santa Barbara amorphous 15) was employed to be a new sorbent for the sorption of Sr(II) from aqueous solution under different experimental conditions. Results showed that Sr(II) sorption with SBA-15 is fast with the equilibrium time within 100 min. The sorption is pH-dependent and good adsorption is at a relatively high pH and low ionic strength. Results suggest that SBA-15 is a potential sorbent for fast and efficient removal of Sr(II) from Sr-contaminated waste water.
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Acknowledgments
The authors gratefully acknowledge the financial support from the National Science Foundation (21367001), Jiangxi Educational Committee Foundation (GJJ13471) and Fundamental Science on Radioactive Geology and Exploration Technology Laboratory of East China Institute of Technology (2011RGET015). State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China Institute of Technology,provided technical assistance (NRE1318).
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Zhang, N., Liu, S., Jiang, L. et al. Adsorption of strontium from aqueous solution by silica mesoporous SBA-15. J Radioanal Nucl Chem 303, 1671–1677 (2015). https://doi.org/10.1007/s10967-014-3681-1
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DOI: https://doi.org/10.1007/s10967-014-3681-1