Structural and spectroscopic characterization of TiO2 nanocrystalline materials synthesized by different methods

Podelinska, Alise, Neilande, Elina, Pankratova, Viktorija, Serga, Vera, Bandarenka, Hanna ORCID: https://orcid.org/0000-0003-4254-8261, Burko, Aliaksandr, Piskunov, Sergei, Pankratov, Vladimir A., Sarakovskis, Anatolijs, Popov, Anatoli I. and Bocharov, Dmitry V. 2025. Structural and spectroscopic characterization of TiO2 nanocrystalline materials synthesized by different methods. Nanomaterials 15 (7) , 498. 10.3390/nano15070498

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Abstract

Nanocrystalline materials based on titanium dioxide possess unique properties, including photocatalytic and antibacterial activities. Despite many approaches have already been utilized to fabricate and characterize pure and doped TiO2, a systematic description of its nanostructured samples depending on the synthesis method has not been presented yet. In this study, we shed new light on the process–structure relationships of nanocrystalline TiO2-based powders fabricated by extraction–pyrolytic, hydrothermal, and sol–gel techniques. The comprehensive analysis of the fabricated nanocrystalline TiO2-based powders with different anatase/rutile phase content is performed by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The hydrothermal and sol–gel methods are also used to grow TiO2 particles doped with Cu and Er-Yb. The correlation between synthesis parameters (pyrolysis and annealing temperature) and properties of the produced materials is studied. Particular attention is paid to Raman spectroscopy and the detailed comparison of our obtained data with existing experimental and theoretical studies.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	MDPI
ISSN:	2079-4991
Date of First Compliant Deposit:	23 July 2026
Date of Acceptance:	20 March 2025
Last Modified:	07 Sep 2026 21:51
URI:	https://orca.cardiff.ac.uk/id/eprint/188415

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