Enhanced reactivity of the CuO-FeO intimate heterojunction for the oxidation of quinoline yellow dye (E104).

This research work describes the degradation of quinoline yellow (QY) in aqueous solutions by the heterogeneous Fenton and photo-Fenton processes in the presence of CuO/FeO photocatalyst. CuO/FeO derived from LDH structure was synthesized by the co-precipitation method. The physiochemical characteristics of CuO/FeO were described by XRD, TEM/SEM, BET surface area, and FTIR techniques.