(Y/Sm)-doped and co-doped CoFeO for heterogeneous advanced oxidation process: structural, magneto-optical, and photocatalytic investigations.

The photocatalytic properties of CoFeO nanoparticles were activated by the doping and co-doping of a low level of Y and Sm cations. After optimizing the annealing temperature, 900 °C was found to be the optimal temperature for the successful incorporation of Y and Sm into the spinel structure. The purity of our samples annealed at 900 °C was confirmed using several characterization methods, including PXRD, SEM, XPS, VSM, FTIR, and Raman spectroscopy.