(A) Fourier transforms of Cu K-edge EXAFS for Cu foil, Cu₂O, and RSC-CNOP. (B) Solid-state EPR of various samples. (C) The valence-electron density maps of the RSC-CNOP model fragment in the Cu-O-C calculated-plane, O-C-C(N) calculated-plane, and aromatic ring calculated-plane and ESP map of the RSC-CNOP model fragment. (D) Conversion curves of BPA in different Fenton-like suspensions (inset shows the corresponding TOC removal curves). (E) DMPO spin-trapping EPR spectra for HO₂^•/O₂^•− and ^•OH in the absence of H₂O₂, HO₂^•/O₂^•− and ^•OH in the presence of H₂O₂ in RSC-CNOP suspensions with/without pollutants. Adapted with permission from ref. [35], Copyright©2019, American Chemical Society.