Abstract

• The main objective of this research work was to synthesize and to characterize titanium dioxide (TiO2) nanoparticles using sol – gel method with different weight ratio of NaOH. The optical properties and band gap energies of obtained nanoparticles were investigated with UV-Vis spectroscopy. The crystal structural and morphological properties of fabricated TiO2 nanoparticles were characterized with XRD and SEM techniques. From the results of investigating methods, it was revealed that the fabricated particles were good agreement with standard physical properties of TiO2 nanoparticles and they could be used in Solar cells, waste water treatment and industrial applications.