Fig. 1: Characterization of samples.
From: Isolated Ni atoms enable alkali-free photoreforming of waste polylactic acid plastic
a XRD spectra of prepared samples. b HADDF-STEM and c EDS mapping image of Ni/CdS. d Ni K-edge XANES spectrum and the oxidation state of Ni/CdS, Ni foil, Ni(OH)2 and NiOOH. e Fourier transform (FT) magnitudes of the experimental Ni K-edge EXAFS spectra of NiO, Ni-foil and Ni/CdS, Ni foil and NiS. f Experimental and best-fitted EXAFS spectra in K space for Ni/CdS. g Experimental and best-fitted EXAFS spectra in R space for Ni/CdS. h Wavelet transform simulation for the k3-weighted EXAFS signals for Ni/CdS, Ni foil and NiS.
