Fig. 2. (a) XRD spectra of Cu-TCPP synthesized in the presence of various acids. (b) FTIR spectra of TCPP and Cu-TCPP. (c) Molecular structures of TCPP and Cu-TCPP. (d)–(f) XPS spectra of flower-like Cu-TCPP: (d) survey, (e) Cu 2p, and (f) C 1s scans. (g) High-resolution Cu 2p XPS spectra of flower-like Cu-TCPP and Cu(NO3)2·3H2O; (h) O 1s and (i) N 1s scans.
