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Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum

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dc.contributor.author Zdorovets, Maxim V.
dc.contributor.author Borgekov, Daryn B.
dc.contributor.author Zhumatayeva, Inesh Z.
dc.contributor.author Kenzhina, Inesh E.
dc.contributor.author Kozlovskiy, Artem L.
dc.date.accessioned 2024-09-17T12:13:35Z
dc.date.available 2024-09-17T12:13:35Z
dc.date.issued 2022
dc.identifier.citation Zdorovets, M.V.; Borgekov, D.B.; Zhumatayeva, I.Z.; Kenzhina, I.E.; Kozlovskiy, A.L. Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum. Nanomaterials 2022, 12, 2241. https://doi.org/10.3390/ nano12132241 ru
dc.identifier.issn 2079-4991
dc.identifier.other doi.org/10.3390/nano12132241
dc.identifier.uri http://rep.enu.kz/handle/enu/16530
dc.description.abstract The aim of this work is to study the effect of lanthanum doping on the phase formation processes in ceramics based on CaTiO3 , as well as to evaluate the effectiveness of the ceramics as photocatalysts for the decomposition of the organic dye Rhodamine B. The methods used were scanning electron microscopy to evaluate the morphological features of the synthesized ceramics, X-ray diffraction to determine the phase composition and structural parameters, and UV-Vis spectroscopy to determine the optical properties of the ceramics. During the experiments it was found that an increase in the lanthanum dopant concentration from 0.05 to 0.25 mol leads to the formation of the orthorhombic phase La0.3Ca0.7TiO3 and the displacement from the ceramic structure of the impurity phase TiO2, which presence is typical for the synthesized ceramics by solid-phase synthesis. On the basis of the data of the X-ray phase analysis the dynamics of phase transformations depending on concentration of lanthanum was established: CaTiO3/TiO2 → CaTiO3/La2TiO5 → CaTiO3/La0.3Ca0.7TiO3 → La0.3Ca0.7TiO3 . During the determination of photocatalytic activity it was found that the formation of La0.3Ca0.7TiO3 phase leads to an increase in the decomposition rate as well as the degree of mineralization. ru
dc.language.iso en ru
dc.publisher Nanomaterials ru
dc.relation.ispartofseries Volume 12;Issue 13
dc.subject doping ru
dc.subject calcium titanate ru
dc.subject photo-catalysis ru
dc.subject decomposition of organic dyes ru
dc.subject phase transformations ru
dc.title Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum ru
dc.type Article ru


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