C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
C01G 23/053 (2006.01) B01J 35/00 (2006.01) C01G 23/047 (2006.01) C03C 17/25 (2006.01) C09C 1/36 (2006.01) B01J 21/06 (2006.01) B01J 37/02 (2006.01)
Patent
CA 2352345
An aqueous dispersion of titanium oxide particles comprising chloride ion, and a Br.PHI.nsted base other than chloride ion, preferably at least one kind of ion selected from nitrate ion and phosphate ion. Preferably the titanium oxide particles are predominantly comprised of brookite titanium oxide particles. The aqueous titanium oxide dispersion is prepared by hydrolyzed titanium tetrachloride in the presence of at least one kind of a Br.PHI.nsted acid. A thin film formed from this aqueous titanium oxide dispersion exhibits good photo-catalytic activity, transparency and adhesion to a base material.
Cette invention concerne un sel d'oxyde de titane contenant des ions chlore et au moins une base de Bronsted, autre que les ions chlore, qui consiste de préférence en des ions nitrate ou des ions phosphates. L'oxyde de titane contenu dans le sel consiste de préférence en un oxyde de titane de type brucite. Ce sel est produit en hydrolysant du tétrachlorure de titane en présence d'au moins un acide de Bronsted. Un film mince d'oxyde de titane formé à partir de ce sel d'oxyde de titane possède d'excellentes caractéristiques d'activité photocatalytique, de transparence, d'adhérence aux substrats, etc.
Nakamura Hidenori
Ohmori Masahiro
Showa Denko Kabushiki Kaisha
Smart & Biggar
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