RESEARCH / A0267
Tailored Ni-O-Ni dimers drive radical/non-radical pathways in peroxymonosulfate oxidation processes to remove emerging contaminants
Read the original paper · 10.1007/s11426-025-2913-x ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Figure 3 (Color online) (a) XPS spectra of Ni 2 p 3/2 on Ni/C 3N 5-x (x = 1, 2, 3). (b) Ni K-edge XANES spectra of Ni foil, NiO, and Ni/C 3N 5-x (x = 1, 2, 3). (c) Correlation between the K-edge energy shift relative to Ni foil and Ni valence for Ni/C 3N 5-x (x = 1, 2, 3) and reference materials. (d) Fourier transform of EXAFS spectra for Ni foil, NiO, and Ni/C 3N 5-x (x = 1, 2, 3). (e) EXAFS fitting curves in R space and (f) the corresponding atomic structures of Ni/C 3N 5-x (x = 1, 2, 3). Blue spheres: N; grey spheres: C; red spheres: O; green spheres: Ni. (g) Wavelet transform of EXAFS spectra.