Preparation and Characterization of Titanium Dioxide Nano-particles by Novel Sol-Gel Method

Titanium dioxide (TiO₂) finds large area of applications ranging from CMOS to photo catalyst. Titanium dioxide is an important Bio and semiconductor material applied in advanced fields like biomedical engineering, DSSC, gas sensing, [8] cosmetics etc. such biomaterial is synthesized by novel sol-gel method [1], [2]. It has excellent optical transmission as because it is a high bandgap semiconductor, which is transparent to visible light. The Sol-Gel technique is the most attractive technique due to its many advantages such as easy preparation method, less complicating instruments and less time consuming. Here, the Sol-Gel technique was successfully used for synthesising pure TiO₂ nano-particles followed by characterization process. TiO₂ nano-particles were synthesised using sol-gel technique followed by annealing [10]. These synthesised nano-particles were characterized by various methods such as X-ray Diffraction (XRD), Fourier Transmission Infrared spectroscopy (FTIR), Ultra-Violet visible spectroscopy (UV) and Scanning Electron Microscope (SEM). XRD can be used to show the presence of anatase TiO₂ nano-particles. FTIR can be used to calculate the transmission range of TiO₂ nano-particles. The UV spectroscopy can be used to lookout the shifting of absorption edges of TiO₂ towards visible light region. The SEM range reveals the structure of nano-particles. The mechanism of synthesising TiO₂ nano-particles using sol-gel technique is discussed in this paper.