Photocatalytic Degradation of Dye from Various Metal/Metal Oxides Derived from Diverse Plants

Toxic dyes are rapidly becoming a big issue in terms of water/soil pollution, as they have an effect the purity of world water bodies, human health and creatures. Unscientific management of industrial dye waste is the primary cause of water pollution. The dyes that come from industries kept a lot of impact on aquatic ecosystems. The ingestion of these dyes through food, vegetables and fish has long-term negative consequences, making them toxic to human health. Therefore, it is a pressing necessity to obtain a simple, quick and low-cost technique for detecting, identifying and purifying these dyes in aqueous medium or from any other source. Various processes, such as sorption, photocatalytic degradation and conversion, can be used to handle industrial waste dyes. Compared to sorption and conversion, photocatalytic degradation has various advantages, including environmental protection and total pollution degradation. Photocatalytic degradation is possible with both metal and non-metal nanoparticles. There are numerous papers on the use of CNTs, ZnO, TiO₂ and other nanoparticles for dye degradation, but the preparation of this both metal and non-metal are required harsh reaction condition and which cause a harmful impact on the environment. The production of nanoparticles using various plant extracts (phyto-nanoparticles) has a cleaner approach. To use of such nanoparticles in the dye degradation process has more impact.