Executive Summary : | The surged water pollution owing to the escalated industrialization has led to the necessity of the excellent photo/electro-catalysts for the wastewater treatment. The scientists have been working rigorously to develop such catalysts to disintegrate the harmful organic pollutants present in the water. The wide band gap semiconductor oxides such as TiO2, CeO2, ZnO, etc., have been widely used for photocatalytic degradation of organic pollutants due to their upmost efficiency and stability [ref]. However, in their pure form these materials are not proven to be the best photocatalysts due to faster electron-hole recombination time. Many strategies such as introduction of lattice defects via doping of foreign elements and synthesis of various morphologies to enhance the number of active sites have been used. Later on, the prime focus moved on to the fabrication of heterojunction hybrid composites such as the combination of two wide band gap materials, wide band gap material with low band gap material and also with the carbon based nanomaterials with enhanced the recombination time of excitons. The existing results showed that the transition metal di-chalcogenides (TMDs) (metal sulphides and selenides) are excellent electrocatalysts for water splitting due to their higher surface to volume ratio and higher number of active sites [ref]. The novel compositions of TMDs with wide band gap metal oxide semiconductors can be synthesized that will surely play a vital role in the enhancement of the degradation of organic pollutants via photoelectrocatalysis for wastewater treatment. To the best of our knowledge, very few studies have been carried out for the degradation of organic pollutants from wastewater using the aforementioned combinations which clearly signifies a gap in the existing research in this domain. |