(a)
(b)
Figure 2:
(a) IR and (b) UV-vis spectra of as-prepared CoFe
2
O
4
–Fe
3
O
4
magnetic nanocomposites. Inset: Plot of (
𝛼
ℎ
𝜐
)
2
versus
ℎ
𝜐
to determine the band gap energy using Tauc relation [
18
].
