Advancements in Photocatalytic Applications of Metal Ferrites for Water Pollution Remediation: A Focus on Biosynthesis and Innovations

In recent years nanobiotechnology has emerged as a first phase modern science and the noble era excluded from the fields of material science and gaining international attention due to its adequate use. This review sheds light on the latest developments in the photocatalytic application of metal ferrites nanoparticles and their nanocomposites derived from the green synthetic route in relation to the destructive potential of pollutants in polluted water, with particular emphasis on their innovations. Wastewater treatment is one of major concerns in recent years and advanced oxidation process is one the most successful methodology for the treatment of water. Although enough literature is present on advanced oxidation processes with the aid of nanoparticles but still the are several challenges that needs to be addressed such as utilization of solar energy, low cost for synthesis, toxicity of chemicals used for synthesis along with the nanoparticles and most importantly the recovery as well as reusability of the catalyst. Metal ferrites are the one of the most suitable candidates that overcome all these issues. In addition, the implementation of the green chemistry for the synthesis adds on its value as an important class for the photocatalytic application. Therefore, the present review article summarized recent advancement in metal ferrites and their composites as well as doped nanostructures as photocatalyst for the degradation of organic contaminations. Finally, the challenges, gaps and needs of future research to improve the photocatalytic use of nanoparticles and their nanocomposites are addressed.