Photocatalytic element for purification and disinfection of air and water and method for the production thereof

The invention relates to the purification and disinfection of air and water. A photocatalytic element consists of sintered glass beads with a pore volume fraction from 20% to 40% and a pore size from 0.1 to 0.5 mm, the surface of which is coated with a titanium dioxide powder, having a specific surf...

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Bibliographic Details
Main Authors Kurkin Evgeny Nikolaevich, Domashnev Igor Anatolevich, Kabachnikov Evgeny Nikolaevich, Troitsky Vladimir Nikolaevich, Berestenko Victor Ivanovich, Balikhin Igor Lvovich
Format Patent
LanguageEnglish
Published 27.03.2018
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Summary:The invention relates to the purification and disinfection of air and water. A photocatalytic element consists of sintered glass beads with a pore volume fraction from 20% to 40% and a pore size from 0.1 to 0.5 mm, the surface of which is coated with a titanium dioxide powder, having a specific surface area of 150-400 m2/g, at the rate of 0.5-2% relative to the total mass of the photocatalytic element. The surface of the glass beads has a relief shape with a relief depression of 0.5-10 μm. The method for producing the photocatalytic element comprises sintering the glass beads at a temperature that is 5-20° C. higher than the glass softening temperature, modifying the bead surface with chemical etching agents, and coating the bead surface with the titanium dioxide powder from a water suspension at a pH of 2.9±0.1.
Bibliography:Application Number: US201214768119