Perfluorooctanoic acid (PFOA) is a perfluorinated alkyl substances (PFASs) that contaminates many ground and surface waters. The limitations of current remediation methods motivate efforts to develop effective adsorbents. We developed a β-cyclodextrin (β-CD)-based polymer network DFB-CDP that binds PFOA with more than ten-fold affinity with respect to granular activated carbon (GAC). Modest amounts of the polymer (10 mg L-1) reduce PFOA from environmentally relevant concentration 1 μg L-1, to &lt;10 ng L-1, well below the 2016 US EPA advisory level (70 ng L-1). This polymer could also be regenerated multiple times by mild wash with MeOH. These results make DFB-CDP a promising adsorbent for treating PFOA-contaminated water.

Sequestering PFOA at environmentally relevant concentrations by a β-cyclodextrin polymer network

254th National Meeting (2017)

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