Synthesis, Structural and Optical Properties of Co Doped TiO2 Nanocrystals by Sol-Gel Method

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˚C450˚450˚C....

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Published inMechanics, Materials Science & Engineering Journal Vol. 9; no. 1
Main Authors Sridevi, D.V V, Ramesh, V, Sakthivel, T, Geetha, K V, Ratchagar, V V, Jagannathan, K V, Rajarajan, K V, Ramachadran, K V
Format Journal Article
LanguageEnglish
Published Magnolithe 2017
Subjects
Chemical Sciences
Engineering Sciences
Material chemistry
Materials
nanoparticles
EDAX
FE-SEM
FT-IR
UV-Vis studies
PXRD
sol-gel method
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Summary: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˚C450˚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 Co 2+ in TiO2 lattice. Compared to un-doped TiO2 nanoparticles, the cobalt doped material show a red shift in the band gap.
ISSN:2412-5954
DOI:10.2412/mmse.99.9.726