fig1

Figure 1. (A) FTIR spectra of the precursor TFDITP and the as-prepared CityU-42 film. (B) Raman spectra of CityU-42. (C) XPS survey of CityU-42. High-resolution XPS spectra of (D) C 1s and (E) F 1s for CityU-42. (F) SEM image of CityU-42@Zn.