Fig. 2: Generality of REM process for various PFAS.
From: Electrothermal mineralization of per- and polyfluoroalkyl substances for soil remediation
a–c Concentrations of organic fluorine (red line) and mineralized fluorine ion (blue line) varied with input voltages for a PFOS-contaminated soil, b PFHxS-contaminated soil, and c PFBS-contaminated soil. d–f 19F NMR spectra of the d PFOS, e PFHxS, and f PFBS -contaminated soil extractant before (top) and after (bottom) REM. Insets in d–f are the molecular structure of PFOS, PFHxS, and PFBS, respectively. The dots denote the F peaks and corresponding F attached C atoms. g Removal efficiencies of different kinds of PFAS. h Mineralization ratios of different kinds of PFAS. The error bars in a–c, g, and h denote standard deviations, where N = 3.
