1. Synthesis, Structural and Optical Properties of Co Doped TiO2 Nanocrystals by Sol-Gel Method
- Author
-
D.V. Sridevi, V. Ramesh, T. Sakthivel, K.Geetha, V. Ratchagar, K. Jagannathan, K. Rajarajan, and K. Ramachadran
- Subjects
FT-IR ,PXRD ,lcsh:Mathematics ,sol-gel method ,nanoparticles ,FE-SEM ,lcsh:QA1-939 ,UV-Vis studies ,EDAX ,lcsh:Physics ,lcsh:QC1-999 - Abstract
A TiO2 nanoparticle doped with cobalt was synthesized by sol-gel technique employed at room temperature with appropriate reactants. In the present case, we used titanium tetra isoprotoxide (TTIP) and 2–propanol as a common starting material and the obtained products were calcined at 450˚ C. From the Powder XRD data the particle size was calculated by Scherrer method. The FE-SEM analysis shows the morphology of cobalt doped TiO2 nanoparticles. The various functional groups of the samples were identified by Fourier transform spectroscopy (FT-IR). The UV-Vis-NIR spectra of cobalt doped TiO2 material shows two absorption peaks in the visible region related to d-d transitions of Co2+ in TiO2 lattice. Compared to un-doped TiO2 nanoparticles, the cobalt doped material show a red shift in the band gap.
- Published
- 2017