Pierce EM1, Lilova K2, Missimer DM3, Lukens WW4, Wu L2, Fitts J5, Rawn C6, Huq A7, Leonard DN6, Eskelsen JR1, F Woodfield B8, Jantzen CM9, Navrotsky A2.
Environ Sci Technol. 2016 Dec 27. doi: 10.1021/acs.est.6b01879. [Epub ahead of print]Treatment and immobilization of technetium-99 (99Tc) contained in reprocessed nuclear waste and present in contaminated subsurface systems represents a major environmental challenge. One potential approach to managing this highly mobile and long-lived radionuclide is immobilization into micro- and meso-porous crystalline solids, specifically sodalite. We synthesized and characterized the structure of perrhenate sodalite, Na8[AlSiO4]6(ReO4)2, and the structure of a mixed guest perrhenate/pertechnetate sodalite, Na8[AlSiO4]6(ReO4)2-x(TcO4)x. Read More