To provide a photocatalyst supporting member with superior photocatalytic performance, initial antifouling performance, abrasion resistance and surface hardness, wherein a base material like soda lime glass is used allowing easy elution of alkali metal ions and/or alkaline earth metal ions.
The photocatalyst supporting member includes: the base material with a total ion elution amount of 1.0 g/cm2 or more, found by measuring the amount of the alkali metal ions and/or alkaline earth metal ions in distilled water obtained by soaking three sample plates of 6 cm6 cm2 mm in 250 g of distilled water at 80C for 24 hours by the atomic absorption spectrometry; a precoat layer formed by applying a precoat composition having polysilazane or a modified matter thereof as a principal component on the base material and curing it; and a photocatalyst-containing layer formed by applying to the precoat layer, thin flake-like titanic acid obtained by applying a basic compound having an interlayer swell action to layered titanium acid and swelling or exfoliating the layers, followed by heat-treating.
MORI HIROHITO
YAMAMOTO MINORU
SHICHI TETSUYA
KATSUMATA KENICHI
TOKAI RYOKAKU TETSUDO KK
| JP2003347294A | 2003-12-05 | |||
| JP2001335950A | 2001-12-07 | |||
| JPH0967124A | 1997-03-11 | |||
| JP2003170060A | 2003-06-17 | |||
| JP2005290369A | 2005-10-20 |
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Patent Business Corporation Saegusa International Patent Office