Solid-phase synthesis and study of the structural, optical, and photocatalytic properties of the ATiO3, A = Ca, Sr, Ba ceramic
Karakozov B.K. Kozlovskiy A.L. Janseitov D.M. Zdorovets M.V.
October 2021Springer
Journal of Materials Science: Materials in Electronics
2021#32Issue 1924436 - 24445 pp.
This paper presents the results of a study of the structural, optical, and photocatalytic properties of ceramics based on ATiO3 titanates, A = Ca, Sr, Ba. Using the method of X-ray phase analysis, it was found that in the case of ceramics obtained from a mixture of BaCO3 and TiO2 after annealing, the structure is a mixture of two phases, rhombohedral BaTiO3 and impurity orthorhombic BaTi4O9. In the case of ceramics obtained from a mixture of CaCO3 and TiO2, the structure is a mixture of two phases of the orthorhombic phase and rutile TiO2. In the case of ceramics obtained from a mixture of SrCO3 and TiO2, the structure is a mixture of two phases of the SrTiO3 orthorhombic phase and the Ti2O5 orthorhombic phase. At the same time, all synthesized ceramics have a high crystallinity degree and order of the crystal structure. An analysis of the optical properties showed that the main changes are associated with the difference in the band gap, which is due to the presence of different phases in the structure of ceramics. Based on the results of photocatalytic reactions, the order of photocatalytic activity of the synthesized ceramics was determined: SrTO3/T2O5 > CaTO3/TO2 > BaTO3.
Text of the article Перейти на текст статьи
The Institute of Nuclear Physics of Republic of Kazakhstan, Almaty, Kazakhstan
L.N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
al-Farabi Kazakh National University, Almaty, Kazakhstan
Ural Federal University, Yekaterinburg, Russian Federation
The Institute of Nuclear Physics of Republic of Kazakhstan
L.N. Gumilyov Eurasian National University
al-Farabi Kazakh National University
Ural Federal University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026