Fig. 2: Structural and compositional characterization of Ni/Fe-MOFs. | npj Clean Water

Fig. 2: Structural and compositional characterization of Ni/Fe-MOFs.

From: Analysis of microstructure properties of Ni-Fe MOFs and their influence on selective recognition of single and binary dye systems

Fig. 2

a FT-IR spectra showing O–H (3429 cm−1), C=C (1618 cm−1), and Fe/Ni–O (540–715 cm−1) bonds. b XRD patterns highlighting amorphous C–N peaks (22°) in Ni-rich MOFs. c TG-DSC curves demonstrating thermal stability: Ni-MOFs undergo three weight-loss steps (water loss, precursor decomposition, and organic ligand degradation), while Fe-rich MOFs show two steps. d XPS full spectra confirming the presence of Fe, Ni, C, N, and O.

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