Synthesis of Titania Nanoparticles and Assessment of Antioxidant Activity

Nanotechnology has inspired a plethora of research subjects and applications. Nanoparticles, in particular, have been manufactured utilizing a number of physical, chemical, and biological techniques, allowing them to be applied in various engineering and scientific applications. The sol-gel method, a wet chemical approach, was used to synthesize titania nanoparticles in this study; these particles were further characterized using an X-ray diffractogram (XRD), which revealed an anatase phase with a strong peak identified at Bragg angle 25 ^O. Fourier transform infrared spectroscopy (FTIR) analysis revealed TiO₂ vibrational modes as well as their hydroxyl group linkages at 932 and 3247 cm⁻¹, respectively. Analysis of the produced particles using FESEM characterization revealed the aggregation of particles with irregular morphologies. The diffuse reflectance examination of the particles supported light absorption in the ultraviolet range and 90% reflection in the infrared region. Finally, antioxidant studies on titania nanoparticles using the DPPH assay revealed improved scavenging activity.