Heterogeneous UV/Fenton-Like Degradation of Methyl Orange Using Iron Terephthalate MIL-53 Catalyst

Figure 4

XPS spectra of the MIL-53(Fe) sample synthesized at the molar ratio FeCl₃ : TA = 1 : 2 and hydrothermal temperature of 150°C: (a) survey spectrum; (b) Fe2p; (c) C2s; (d) O1s.

(a)

(b)

(c)

(d)