Figure 8.

Advanced Spectroscopy Analysis of Interaction Mechanism

(A) XPS spectra of Hg 4f (a) and S 2p (b) of M-DAPS50-COF-SH and Hg-loading samples.⁵⁷ (B) (a) Fourier transform of U L_III-edge EXAFS spectra of POP-TpDb-AO (green line) and COF-TpDb-AO (orange line) in R-space, (b) Fourier transform of U L_III-edge EXAFS spectrum of COF-TpDb-AO in R-space. The magnitude of Fourier transform is fitted by a green line; the real component is fitted with a blue line. (c) Fourier transform of U L_III-edge EXAFS spectrum of POP-TpDb-AO in R-space. The magnitude of Fourier transform is fitted by an orange line; the real component is fitted with a blue line. (d) Accompanying k²-weighted χ(k) data and fit for POP and COF (green and orange lines, respectively). (e) Wavelet transform analysis of COF-TpDb-AO and (f) POP-TpDb-AO, demonstrating the extreme similarity between datasets. In all panels, gray dashes denote the fit window.¹⁸¹ (C) (a) FTIR spectra of TPT-BD COF and TPT-BD COF@I₂, (b) Raman spectra of TPT-BD COF, and (c) TPT-DHBD COF before and after volatile iodine adsorption. (d) PXRD patterns of the pristine iodine and iodine-loaded COFs.²⁴³