FUNCTIONALIZED POROUS ORGANIC POLYMERS AS URANIUM NANO-TRAPS FOR EFFICIENT URANIUM EXTRACTION
申请人:University of South Florida
公开号:US20210162371A1
公开(公告)日:2021-06-03
Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm
3
g
−1
in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.