Photocatalytic Degradation of Rhodamine B in Heterogeneous and Homogeneous Systems

This study focuses on the photocatalytic degradation of Rhodamine B (RhB) in heterogeneous and homogeneous photo-Fenton reactions. In system, iron(II) doped copper ferrite CuII(x)FeII(1-x)FeIII2O4 nanoparticles (NPs) prepared our previous work were employed as potential catalysts. The photodegradation RhB was carried out a quartz cuvette located diode array spectrometer. experimental conditions such pH, NPs dosage H2O2 with regard to optimized be 7.5, 500 mg/L 8.9x10-2 mol/L, respectively. addition, visible light-induced also by using \ch{H2O2} over wide pH range absence photocatalysts. It observed that reaction rate significantly increased above 10, resulting faster RhB, which may attributed deprotonation hydrogen peroxide. Furthermore, antibacterial property catalysts against Gram-negative bacterium Vibrio fischeri bioluminescence assay yielded inhibition activities more than 60% all cases.