Modeling Control over the Size and Phase Composition of Submicron Particles of Titanium Dioxide Synthesized in a Flow Plasma-Chemical Reactor

Autor:	S. M. Aulchenko, E. V. Kartaev
Rok vydání:	2020
Předmět:	Anatase Materials science General Chemical Engineering General Chemistry Plasma Chemical reactor chemistry.chemical_compound Chemical engineering chemistry Impurity Ultrafine particle Titanium dioxide Particle size Hardening (computing)
Zdroj:	Theoretical Foundations of Chemical Engineering. 54:588-591
ISSN:	1608-3431 0040-5795
DOI:	10.1134/s0040579520040144
Popis:	A mathematical and experimental modeling of the process of synthesis under nonequilibrium conditions of a fine powder of titanium dioxide anatase crystalline modification with a combination of reaction zones and counter hardening has been carried out. The formation of ultrafine particles occurs in regions with large values of the convective derivative of temperature (~105 K/s). The mass-average particle size was 10–70 nm in calculations and 32–45 nm in experiments. The anatase content of the powder in calculations was 70–90% and in experiments ~83%. This method allows control over the phase composition and particle size of the synthesized titanium dioxide powder used as photocatalysts, in particular, when treating wastewater from organic waste and air from harmful impurities.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::64b2f9fdc6d27bdea68eab138ed5f8ac https://doi.org/10.1134/s0040579520040144 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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