Office of Commercialization and Economic Development
Office of Technology Commercialization

Ionic Fluorogels for Remediation of Per- and Polyfluorinated Alkyl Substances from Water

Technology #19-0149

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Researchers
Frank Leibfarth
Managed By
Chance Rainwater
Commercialization Manager 919.445.9371
Patent Protection
Provisional Patent Application Filed

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. 

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