A review on boosting the photocatalytic degradation of organic pollutants using modified nanocomposites
Our standard of existence is seriously threatened by the unrestrained dumping of textile chemicals into natural water sources, which poses serious ecological and environmental pollutions. There has been a lot of research on photocatalysis potential to remove environmental contaminants, particularly when treating water and air. The utilization of multifunctional semiconductor materials for photocatalytic degradation has garnered significant interest as a potential technique and is deemed extremely favourable. Here we can describe the principles, mechanisms, characteristics and several parameters which affected the photocatalytic degradation of organic pollutants such as initial dye concentration, amount of catalysts, irradiation time and pH. This review also illustrates various types of organic pollutants like dyes, antibiotics, pesticides, herbicides, fungicides. photocatalysts like single photocatalysts and their modified versions (ZnO, TiO2, CeO2, S-doped ZnO, K-doped ZnO, Ag-doped TiO2, etc.), binary photocatalysts and their modified versions (ZnO-TiO2, ZnO-CuO, TiO2-WO3 and ZnO/g-C3N4, SmVO4/g-C3N4, ZnO-RGO, ZnO- PANI), Ternary photocatalysts and their modified versions (ZnO-TiO2-RGO, ZnO/TiO2/NiO,). The synthesized nanocomposite is employed in a variety of biomedical applications, as well as in the sectors of electronic devices, waste water treatment, water splitting, hydrogen evolution, and CO2 reduction. The article concludes by summarizing the primary achievements and benefits of modified nanocomposites as a photocatalysts for the elimination of organic pollutants. It also highlights the issues and challenges that still need to be resolved as well as potential future directions for this field's development.