The Zn0.5Mn0.5Ce0.08Fe1.92O4 photocatalyst demonstrated excellent photocatalytic efficacy for RhB and superior stability. It's simple synthesis method, superior magnetic characteristics, and excellent stability make it a promising candidate for high-frequency applications and large-scale pollution treatment. Li et al. created a photocatalyst (figure-5) supported by threedimensional ordered microporous silica to activate PMS and degrade BPA using visible light. The photocatalyst, n-CeO2@p-LaFeO3/3DOM SiO2, demonstrated exceptional photocatalytic efficiency due to the catalysts' pore confinement effects and the combined influence of LaFeO3 and CeO2. The researchers have shown that the breakdown of BPA occurs via the generation and identification of reactive oxygen species (ROS), as well as through adsorption and diffusion processes. The researchers determined that n-CeO2@p-LaFeO3/3DOM SiO2 has great potential as a sustainable material for effective sewage treatment. Andrei et al. did research where they used the Fenton method to examine the catalytic activity of lanthanide-doped magnesium ferrites. The lanthanide ions used for doping were La 3+ , Ce 3+ , Sm 3+ , Gd 3+ , and Dy 3+ . Under the study, the catalytic efficacy of the catalysts, as measured by the maximum appearance rate constant k, declined in the following sequence when exposed to UV irradiation: Ce 3+ > Dy 3+ > La 3+ MgFe2O4 > Sm 3+ > Gd 3+ . The ferrites demonstrated excellent efficiency, achieving a degradation rate of up to 99% for MB within 60 minutes for visible-driven Fenton reactions, and within 20 mins for UV-driven Fenton reactions. Also, the investigation demonstrated that the outcomes were similar to those of other heterogeneous Fenton catalysts. A study explored Ce-doped manganese ferrite (MnFe2O4) for wastewater treatment and sensing. A simple solution combustion method synthesized Ce-doped MnFe2O4 (MFC3). This magnetic photocatalyst demonstrated excellent performance, degrading 98% and 89% of MB and AR dyes in the presence of sunlight (Figure ). MFC3 also showed promise in sensing D-glucose and paracetamol from water. Utilizing magnetic properties facilitated MFC3's fabrication and characterization. These findings suggest that MFC3 has the potential as a multifunctional material for wastewater treatment (photocatalysis), biomedicine (soft magnetism), and sensor technology (detecting specific molecules). 5. Based on different materials