• S T NISHANTHI

Articles written in Pramana – Journal of Physics

• Role of hydrothermal temperature on crystallinity, photoluminescence, photocatalytic and gas sensing properties of $TiO_{2}$ nanoparticles

$TiO_{2}$ nanoparticles were synthesised by hydrothermal method. The degree of crystallinity and phase purity were confirmed from the Raman spectra and X-ray diffraction. By increasing the hydrothermal temperature,crystallinity and AC conductivity of the $TiO_{2}$ nanoparticles increase. Nitrogen adsorption–desorption measurements confirmed that the samples were mesoporous with an average pore diameter of 4.4–7.45 nm. Photocatalytic activity of $TiO_{2}$ nanoparticles was evaluated and the sample hydrothermally treated at 160$^\circ$C has the highest photocatalytic activity. In gas sensing measurements, sensitivity increases as a function of concentration and the response to ethanol vapour was better compared to other gases for the sample synthesised at 160$^\circ$C.

• # Pramana – Journal of Physics

Volume 95, 2021
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019