Structural, Optical and Thermal Investigations of TiO2 and S-Doped TiO2 Nanoparticles

Titanium dioxide (TiO₂) and sulfur doped titanium dioxide (S-doped TiO₂) nanoparticles are synthesized by Coprecipitation technique using titanium trichloride (TiCl₃) as precursor, ammonium hydroxide (NH₄OH) as solvent and sodium sulfite as source of sulfur. The X-ray diffraction (xrd) pattern reveals that TiO₂ Nanoparticles are in anatase phase and anatase content decreases with increasing S-doping. The Differential Scanning Calorimetry (DSC) analysis elucidates the metastable anatase phase changes to stable rutile phase at 746 °C temperature. The UV/Vis study predicts larger band gap of TiO₂ Nanoparticles as compare to bulk and blue shift with increasing S-doping.