Competitive Advantages:
High uranium absorption capacity, Fast yet controllable kinetics, Facile regeneration and recyclability,
Stable under a wide range of conditions, High selectivity of uranium.
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 cm3 g-1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.USF researchers have designed a porous organic polymer for efficient uranium capture. This technology is stable under a wide range of conditions and is a capable mechanism for uranium removal, with high capacity and specificity. The material is easy to produce and it is also reusable. This porous organic polymer may expand the scope of current applications, providing many opportunities to advance current materials and devices aimed toward extraction of uranium from seawater and nuclear waste.
Brochure
