Synthesis, characterization and photodegradation application of Fe-Mn and F-MWCNTs supported Fe-Mn oxides nanoparticles

Multiwalled carbon nanotubes (MWCNTs) supported and unsupported bimetallic iron and manganese oxides nanoparticles (Fe-Mn NPs) were synthesized by wet chemical precipitation method. The synthesized nanoparticles were then characterized by various instrumental techniques such as scanning electron microscopy (SEM), energy dispersive X-ray and X-ray diffraction. The MWCNTs/Fe-Mn and Fe-Mn NPs were used as photocatalysts for the photodegradation of methylene blue in aqueous medium. The photodegradation study was monitored by using UV–Vis spectrophotometer. The effect of various parameters such as irradiation time, pH, catalyst dosage and concentration of dye on the photocatalytic degradation was studied. The activity of recovered catalyst was also examined.