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Photocatalytic element for purification and disinfection of air and water and method for the production thereof
专利权人:
发明人:
Igor Lvovich Balikhin,Victor Ivanovich Berestenko,Igor Anatolevich Domashnev,Evgeny Nikolaevich Kabachnikov,Evgeny Nikolaevich Kurkin,Vladimir Nikolaevich Troitsky
申请号:
US14768119
公开号:
US09925529B2
申请日:
2012.12.20
申请国别(地区):
US
年份:
2018
代理人:
摘要:
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.
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