Controllable formation of TiO$_2$-rutile nanostructures with a specified morphology using thermal oxidation technique

S. A. Khubezhov^abc, E. Yu. Ponkratova^c, M. E. Karsakova^c, V. V. Prigodich^d, O. I. Il'in^a, I. V. Silaev^b, I. V. Tvauri^b, D. V. Yakimchuk^d, E. Yu. Kaniukov^e, D. A. Zuev<sup>c

a</sup> Institute of Nanotechnologies, Electronics and Equipment Engineering, Taganrog, Russia
^b North Ossetian State University after Kosta Levanovich Khetagurov, Vladikavkaz, Russia
^c St. Petersburg National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia
^d Scientific-Practical Materials Research Centre of NAS of Belarus, Minsk, Belarus
^e National University of Science and Technology «MISIS», Moscow, Russia

Abstract: Titanium dioxide nanostructures are formed by a simple one-stage method of thermal oxidation of titanium in the temperature range of 700–900$^\circ$C. The structures were studied by high-resolution electron microscopy and X-ray diffraction. It is shown that, depending on the temperature, nanostructures in the form of crystallites, granules, and dendrites of TiO$_2$-rutile are formed on the surface of metallic titanium. The proposed method is promising for the large-scale creation of advanced functionalized TiO$_2$ surfaces applicable in catalysis and sensorics.

Keywords: nanostructures, titanium dioxide, thermal oxidation, morphology, dendrites.

Received: 09.03.2022
Revised: 02.05.2022
Accepted: 13.05.2022

DOI: 10.21883/PJTF.2022.13.52740.19185n

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