This invention describes ionic fluorogel resins that remove per- and polyfluorinated alkyl substances (PFAS) from water with high affinity and selectivity. The resin design relies on a fluorophilic resin matrix material that is decorated with ionic functional groups. The fluorophilic backbone selectively partitions PFAS into the resin, and the ionic functional groups sequester charged PFAS contaminants through targeted ion exchange. The selective removal of PFAS from real-world contaminated water samples has been demonstrated using these ionic fluorogel resins. The resins can be regenerated through solvent extraction without loss in adsorption efficiency in subsequent reuses.
· Synergistic combination of fluorous and ionic interactions provides tunable design platform
· Demonstrated removal of PFAS from settled water collected in Wilmington, NC
· Improved selectivity for PFAS adsorption in head-to-head comparisons with current removal methods based on activated carbon.
- Ionic Fluorogels for Remediation of Per- and Polyfluorinated Alkyl Substances from Water ACS Cent. Sci. 2020, 6, 487-492