Enviar artigo por via de e-mail Photocatalytic Activity of Ba-Doped BiFeO3 Nanoparticles
- Autores: Gyulakhmedov R.R.1, Orudzhev F.F.1,2, Khrustalev A.N.3, Sobola D.S.4, Abdurakhmanov M.D.1, Faradzhev S.P.1, Muslimov A.E.5, Kanevsky V.M.5, Rabadanov M.K.1, Alikhanov N.R.1,2
-
Afiliações:
- Dagestan State University
- Institute of Physics, Dagestan Federal Research Center of the Russian Academy of Sciences
- MIREA — Russian Technological University
- Brno Technical University
- A.V. Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the National Research Centre “Kurchatov Institute”
- Edição: Nº 4 (2025)
- Páginas: 89-100
- Seção: Articles
- URL: https://journals.rcsi.science/1028-0960/article/view/326375
- DOI: https://doi.org/10.31857/S0031184725030067
- EDN: https://elibrary.ru/SXGHLX
- ID: 326375
Citar
Acesso aberto
Acesso está concedido
Somente assinantes
Resumo
In this work, nanopowders of the Bi₁–xBaₓFeO₃ system (x = 0, 0.10, 0.20) were synthesized using the combustion method of nitrate-organic precursors. The effect of doping bismuth ferrite (BiFeO₃) with barium (Ba²⁺) ions on the morphology, crystal structure, and photocatalytic activity of the material was studied. X-ray diffraction analysis showed that all samples crystallize in a rhombohedrally distorted perovskite structure with the R3c space group. Doping with barium led to a significant decrease in crystallite size, as well as distortion of the crystal lattice. In the case of 20% substitution, the formation of a BaCO₃ impurity was observed, which was also confirmed by Raman spectroscopy. It was shown that the introduction of barium results in a more porous texture and a significant increase in the specific surface area of the material. The original BiFeO₃ demonstrated extremely low efficiency in the photocatalytic decomposition of methylene blue compared to photolysis. However, barium doping significantly improved the photocatalytic performance: at 20% Ba substitution, methylene blue decomposition reached 99% within 1 hour.
Palavras-chave
Sobre autores
R. Gyulakhmedov
Dagestan State University
Email: alihanov.nariman@mail.ru
Rússia, Makhachkala, 367000
F. Orudzhev
Dagestan State University; Institute of Physics, Dagestan Federal Research Center of the Russian Academy of Sciences
Email: alihanov.nariman@mail.ru
Rússia, Makhachkala, 367000; Makhachkala, 367015
A. Khrustalev
MIREA — Russian Technological University
Email: alihanov.nariman@mail.ru
Rússia, Moscow, 119454
D. Sobola
Brno Technical University
Email: alihanov.nariman@mail.ru
Tchéquia, Brno, 60200
M. Abdurakhmanov
Dagestan State University
Email: alihanov.nariman@mail.ru
Rússia, Makhachkala, 367000
Sh. Faradzhev
Dagestan State University
Email: alihanov.nariman@mail.ru
Rússia, Makhachkala, 367000
A. Muslimov
A.V. Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the National Research Centre “Kurchatov Institute”
Email: alihanov.nariman@mail.ru
Rússia, Moscow, 119333
V. Kanevsky
A.V. Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the National Research Centre “Kurchatov Institute”
Email: alihanov.nariman@mail.ru
Rússia, Moscow, 119333
M. Rabadanov
Dagestan State University
Email: alihanov.nariman@mail.ru
Rússia, Makhachkala, 367000
N.-M. Alikhanov
Dagestan State University; Institute of Physics, Dagestan Federal Research Center of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: alihanov.nariman@mail.ru
Rússia, Makhachkala, 367000; Makhachkala, 367015
Bibliografia
- Ссылка 1
- Ссылка 2
Arquivos suplementares
