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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.
Keywords
Band Gap, FTIR, Grain Size, SEM, Sol-Gel, Titanium Dioxide (TiO2), UV, XRD.
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