C3n4 based hybrid materials an Efficient reusable and visible light Active photocatalysts for Degradation studies

Abstract

Since the wastewater containing dye molecules are dangerous to human beings and cause issues to the biological system, the color contaminated water released from textile, dyeing and paper industries must be properly treated before it is discharged into the environment. There is an urgent requirement in low cost processes of dye removal needs development of innovation. In recent decades for a diversity of application, for example, hydrogen generation from water splitting, water and air treatment, semiconductor photocatalysis has been seriously designed. Just under UV radiation, wide band gap semiconductors are dynamic which are the demerits of majority of photocatalysis. This proposal researches recognizes visiblelight active photocatalyst, graphitic carbon nitride (g-C3N4), where visible light radiation is efficaciously used. In present day, because of its distinctive properties, the graphitic carbon nitride (g-C3N4) has possessed potential demands in the photocatalytic field. Be that as it may, the great recombination rate of the photo-induced electron-hole pairs incredibly limits the photocatalytic effectiveness of the pristine g-C3N4. In this thesis, with elevated photocatalytic activity under visible light illuminaton, the pursue is to structure and fabricate effective C3N4-based hybrid materials. In the present thesis, three strategies have been employed in order to achieve this goal. In this study, by simple pyrolysis of melamine, the g-C3N4 was prepared. Primarily, to construct g-C3N4-based hybrid materials, the as-synthesized g-C3N4 was employed as the host material. In this work, synthesis of three kinds of C3N4-based hybrid materials such as NiO/C3N4 hybrid photocatalyst, C3N4/CS nanocomposite film and Sb/C3N4 nanophotocatalyst were successfully synthesized. By simple calcination method, using nickel nitrate and melamine as the starting material with different mass ratios; NiO/C3N4 hybrid photocatalyst was prepared newline