On the Possibility of Obtaining Powder of Titanium Dioxide Synthesized by Plasma Dynamic Method

Autor: Ivan Shanenkov, A. A. Sivkov, Aleksander S. Ivashutenko, Yu. L. Shanenkova, I. A. Rakhmatullin, Yu. N. Vympina
Rok vydání: 2021
Předmět:
Zdroj: Inorganic Materials: Applied Research. 12:964-969
ISSN: 2075-115X
2075-1133
Popis: At the moment, the problems of environmental pollution are urgent; therefore, issues related to photocatalysis as a direction for the future development of unconventional power engineering are being solved by many researchers in the world. To achieve these goals, titanium dioxide, known for its many properties, is used as a photocatalyst. However, its application is limited owing to its wide band gap and high rate of electron pair recombination. The paper proposes a method for direct plasma dynamic synthesis of dispersed titanium dioxide. It has been found that the synthesized product consists of two fractions that differ greatly in size: a coarse fraction with a particle size from ~100 to ~10 μm and a fine one with a particle size from ~1 μm to ~10 nm. It has also been revealed that they contain mainly two crystalline modifications of titanium dioxide: anatase and rutile with a tetragonal crystal system.
Databáze: OpenAIRE