Fig. 2

The XRD pattern (a), FTIR spectra (b), VSM analysis (c), and UV–vis DRS spectra with bond gap energy (inset) of the F@S/C-M composite.

The XRD pattern (a), FTIR spectra (b), VSM analysis (c), and UV–vis DRS spectra with bond gap energy (inset) of the F@S/C-M composite.