Fig. 3: Analysis of the photoexcited LMCT process and PFOA degradation.
From: Photoexcited LMCT of Cu2+ perfluorocarboxylate for initiating efficient defluorination
a Absorption spectra of various solutions ([Cu2+]: [PFOA]: [NaOH] = 2:1:1, [PFOA] = (0.5 mmol/L)). b Job’s method for deprotonated PFOA and Cu2+ salt. Solid lines represent the best fit. View of the molecular structure of the (c) 2:1 and (d) 1:1 stoichiometric complexes (carbon, gray; oxygen, red; copper, orange; and nitrogen, blue). e In situ FTIR analysis of CO2 evolution and C−F signal reduction during the reaction. f Concentrations of intermediates and (g) F mass balance over time. Error bars represent standard deviation.
