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

Figure 3

FT-IR spectrum of terephthalic acid (a); FT-IR spectra of MIL-53 samples synthesized at the temperature of 100°C (b), 120°C (c), 150°C (d), and 180°C (e) (FeCl₃ : TA molar ratio of 1 : 2).