Nanostructured Optical Composites of TiO2(C3N4Ox)/PANI for Photocatalytic Application

The present chapter focuses on the in situ process of nanocomposites synthesis with the presence of TiO2, C3N4Ox nanoparticles using oxidative polymerization. It is observed that the synthesis of the nanocomposites promotes optical properties in the visible range between 400 and 700 nm due to the creation of structural defects in synthesized particles of various morphologies (EPR, UV–Vis). XPS, EDX with SEM confirmed oxygen-rich composition, polymer layer on surface TiO2, C3N4Ox nanoparticles. UV–Vis spectrophotometry, XPS revealed a decrease in bandgap energies with increasing polyaniline loading. The formation of TiO2 (C3N4Ox)/PANI systems by a single-stage method can be used as a cost-effective way to avoid the disadvantages of each component and realize the synergistic effect of creating more active centers. It will be possible due to doping and strength heterojunction to increase the photocatalytic activity of the material.