Abstract
In this study, three-dimensional flower-like α-Fe2O3 (F-Fe2O3) microspheres were synthesized by a facile chemical bath method and characterized by XRD, FE-SEM, TEM and BET specific surface area. The maximum sorption capacity of 60Co(II) on F-Fe2O3 reached to 6.78 × 10−4 mol/g at 298 K and pH 6.5. The pH and ionic strength experiments implied that the removal of F-Fe2O3 towards 60Co(II) is dominated by ion exchange and/or outer-sphere surface complexation at pH < 7.5, and by inner-sphere surface complexation at pH > 7.5. In conclusion, the F-Fe2O3 microspheres could be applied as cost-effective materials for the removal of 60Co(II) from wastewater.
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Financial supports from National Natural Science Foundation of China (21677045, 21203050 and 11647119) and Anhui Provincial Natural Science Foundation (1508085QF123) are acknowledged.
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Guo, Z., Ling, Q., Zhou, Y. et al. Synthesis of three-dimensional flower-like α-Fe2O3 microspheres for high efficient removal of radiocobalt. J Radioanal Nucl Chem 314, 1897–1904 (2017). https://doi.org/10.1007/s10967-017-5534-1
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DOI: https://doi.org/10.1007/s10967-017-5534-1