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To efficiently remove and recover perfluorinated compounds (PFCs) such as perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS) from water, surface-tethered β-cyclodextrins (CDs) on the surface of polystyrene (PS) particles (PS-β-CDs) were prepared. The PS-β-CDs with a 36% β-CD content showed high adsorption capability against these PFCs from water via inclusion complex formation. The perfluorocarboxylic acids (PFCAs) adsorbed onto PS-β-CDs were easily and quantitatively recovered by washing with acetone.
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Kawano et al. (2013) studied this question.
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