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Li, J., Dai, X., Zhu, L., Xu, C., Zhang, D., Silver, M. A., … Wang, S. (2018). (tco4-)-tc-99 Remediation By A Cationic Polymeric Network. Nature Communications. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000440413500007
Direct removal of (TcO4-)-Tc-99 from the highly acidic solution of used nuclear fuel is highly beneficial for the recovery of uranium and plutonium and more importantly aids in the elimination of Tc-99 discharge into the environment. However, this task represents a huge challenge given the combined extreme conditions of super acidity, high ionic strength, and strong radiation field. Here we overcome this challenge using a cationic polymeric network with significant TcO4- uptake capabilities in four aspects: the fastest sorption kinetics, the highest sorption capacity, the most promising uptake performance from highly acidic solutions, and excellent radiation-resistance and hydrolytic stability among all anion sorbent materials reported. In addition, this material is fully recyclable for multiple sorption/desorption trials, making it extremely attractive for waste partitioning and emergency remediation. The excellent TcO4- uptake capability is elucidated by X-ray absorption spectroscopy, solid-state NMR measurement, and density functional theory analysis on anion coordination and bonding.
Li, J., Dai, X., Zhu, L., Xu, C., Zhang, D., Silver, M. A., … Wang, S. (2018). (tco4-)-tc-99 Remediation By A Cationic Polymeric Network. Nature Communications. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000440413500007
