fig2
Figure 2. (A) FT-IR and (B) solid-state UV-Vis DRS spectra of CPI/CP, CPI-A, CPI-S and raw materials. (C) CP MAS NMR spectrum of CPI exfoliated from CPI/CP. (D) XPS spectra of CPI/CP. (E) C 1s, (F) N 1s, and (G) O 1s XPS spectra of CPI/CP. N2 adsorption-desorption isotherms and pore size distribution of (H) CPI-S and (I) CPI/CP.
