Synthesis and Properties of SrTiO 3 Ceramic Doped with Sm 2 O 3 .

The aim of this work was to study the effect of samarium oxide doping on a SrTiO 3 perovskite ceramic. After analyzing the data obtained on the morphological features of the synthesized structures, it was found that an increase in the dopant concentration led not only to a change in the morphological features, but also in the density of the ferroelectrics. Using the X-ray diffraction method, it was found that doping with Sm 2 O 3 led to the formation of a multiphase system of two cubic phases of SrTiO 3 and Sm 2 O 3 . At the same time, an increase in the concentration of Sm 2 O 3 dopant led to a change in the crystallinity degree, as well as deformation of the structure. Evaluation of the efficiency of use of synthesized ferroelectrics as catalysts for purification of aqueous media from manganese showed that an increase in the concentration of Sm 2 O 3 dopant led to an increase in purification efficiency by 50-70%.