Aluminum‐Doped Magnesium–Manganese Mixed Nano Ferrites as an Effective Photocatalyst for Methylene Blue

In the present study, Al 3+ ‐doped Mg 0.5 Mn 0.5 Al x Fe 2− x O 4 ( x = 0.25, 0.50, 0.75) spinel ferrite system is synthesized by the modified auto combustion technique. These nano ferrites are studied by various means, that is, EDAX, SEM, XRD, FTIR, DLS, M‐H loop, and UV‐DRS for their structural, magnetic, and optical properties. The dye degradation experiments for the methylene blue using nano ferrites are conducted under solar radiation in the presence of H 2 O 2 to measure the absorbance in a UV–visible spectrophotometer for the various specimens/concentrations. Among all the specimens, 0.25 Al 3+ ‐doped magnesium–manganese nano ferrite degrades the highest methylene blue dye in 75 min with the lowest concentration of H 2 O 2 .