Water Remediation via TiO$_{\mathrm{2}}$ photocatalytic Nanoparticle under Solar Simulated Radiation

In this research project, we have successfully developed the TiO$_{\mathrm{2}}$ nanoparticles dispersed-processed water solutions irradiated with UV-Visible light to create reactive oxygen species (ROS) for the \textit{decontamination of azo- dyes}. TiO$_{\mathrm{2}}$ nanocomposite photocatalysts have shown potential promise in disinfection of both bacterial and organic contaminants in water. We have successfully demonstrated the degradation of \textit{azo- dyes }such as Methyl Orange, and Methylene Blue by using UV-Vis light source. The process of photo-oxidation of MO and MB in presence of TiO$_{\mathrm{2}}$ photocatalyst thus produce hydroxyl free radicals and superoxides, for the complete destruction of toxic organics in the processed water. The characterization such as Fourier Infrared Spectroscopy and UV-Vis spectroscopy have been employed to characterize the aqueous water solution before and after photocatalytic treatment to understand the physic-chemical behavior. A bench scale photocatalytic reactor has been fabricated for the water decontamination experiments using our 3D printing and laser cutter technologies.