Ammonium-Coordinated Exchanger (ACE) for Anion Contaminant Removal from Water

Abstract

Materials, methods of making, and methods of using an ammonium-coordinated exchanger (ACE) for anion contaminant removal from water. An ACE featuring: a polyamine network with amine groups, covalently attached to a substrate by a cross-linker; and an exchangeable anion coordinated to some of the amine groups. A method of making an ACE, featuring: generating a basic immobilized amine sorbent; and exposing the sorbent to an acid to form an ACE. An alternate method of making an ACE, featuring: forming an impregnation solution of a polyamine, cross-linkers, and anion exchange linkers, and combining the impregnation solution with a substrate to form an ACE. A method of using an ACE to capture an anionic species from a liquid source featuring: exposing the ACE to the liquid source and capturing the anionic species in the liquid source.

Dependencies are inferred from the claim text.