
Sol–gel method was employed in the preparation of pure and Iron (Fe- 4%, 8%, 12% & 16%) doped TiO2 nanoparticles. The prepared Fe3+–TiO2 nanoparticles were investigated by means of X-ray diffraction analysis (XRD) and UV-VIS-diffuse reflectance spectroscopy (DRS). The mono-anatase structure in the composite nanomaterials is indicated by XRD analysis. The Fe doped TiO2 powders could apparently shift the UV-absorption band towards the higher energy region, and there was an optimal 8%Fe content in association with the larger band gap energy.