Poly(amidoxime) functionalized MoS2 for efficient adsorption of uranium(VI) in aqueous solutions

A novel adsorbent for enrichment of trace uranium (U(VI)) ions in aqueous solution is designed based on the excellent adsorption capacity of poly(amidoxime) (PAO) and the excellent chemical properties of MoS 2 . Specifically, PAO/MoS 2 is prepared by plasma induced polymerization of acrylonitrile on MoS 2 surfaces, followed by amidoximation treatment with NH 2 OH. This as-prepared PAO/MoS 2 was applied as adsorbent for the separation of U(VI) from aqueous solutions. The modified PAO enhance greatly the adsorption capability of MoS 2 for U(VI) in aqueous solutions. PAO/MoS 2 presents excellent selectivity for U(VI) in aqueous solution, suggesting PAO/MoS 2 can separate U(VI) with high selectivity.