⁹⁹TcO₄^- removal from legacy defense nuclear waste by an alkaline-stable 2D cationic metal organic framework.

ABSTRACT: Removal of ⁹⁹TcO₄^- from legacy defense nuclear tank waste at Savannah River Site is highly desirable for the purpose of nuclear safety and environmental protection, but currently not achievable given the extreme conditions including high alkalinity, high ionic strength, and strong radiation field. Herein, we present a potential solution to this long-term issue by developing a two-dimensional cationic metal organic framework SCU-103, showing ultrahigh stability in alkaline aqueous media and great resistance to both β and γ radiation. More importantly, it is very effective for ⁹⁹TcO₄^- separation from aqueous media as demonstrated by fast exchange kinetics, high sorption capacity, and superior selectivity, leading to the succes

SUBMITTER: Shen N 

PROVIDER: S-EPMC7642432 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature