Synthesis and characterization of Zn–Mn–Fe nano oxide composites for the degradation of reactive yellow 15 dye

Abstract

This study has been demonstrated the potential use of Zn–Mn–Fe metal nano oxide composites for the degradation of reactive yellow 15 dye. The nanocomposites ZnO– Fe2O3–MnO2 photo-catalysts with different molar compositions were prepared by the solution method and chosen a best sample for further study. After the verification of structure using XRD, and FTIR, the effect of various parameters on the % removal of reactive yellow 15 has been studied. The maximum decolorization of reactive yellow 15 (56%) was achieved when the PH of Zn–Mn–Fe nano oxide composite was fixed 4. We have also calculated the effect of contact time on the adsorption of RY-15 with Zn– Mn–Fe metal nano oxide composites and it was found that adsorption of RY−15 increased from 27.11 to 55.93% as the contact time increased from 5 min to 110 min. Furthermore, the effect of nanocomposite dosage on the % removal of dye was also calculated and it was found that it increased from 56.89% to 74.14% when the dosage of Zn–Mn–Fe-NMOC was increased from 0.20 to 1.0 g/L. Based on the results obtained in this study, we have concluded that 76% of the Reactive yellow 15 dye was removed using our synthesized Zn–Mn–Fe nano oxide composites.