摘要
Although solid-phase extraction is a useful approach for metal ion separation from aqueous solutions,existing sorbents suffer from low extraction effici-encies and/or instability when in contact with strong acidic media.We report here the first study on rational design and fabrication of phosphonate-decorated covalent organic frameworks,COF-IHEP1 and COF-IHEP2,for efficient and selective extraction of of uranium(VI)[U(VI)]and plutonium(IV)[Pu(IV)]from highly acidic solutions.
基金
This work was supported by the National Natural Science Foundation of China(Grant Nos.21577144,21777161,11575212,and 21806167)
the Science Challenge Project(TZ2016004)
the Youth Innovation Promotion As-sociation of CAS(2017020).
