| 摘要 |
The present invention provides a glass article including a photocatalyst film 1 containing silicon oxide particles 6 and titanium oxide particles 5, the glass article having an increased transmittance provided by enhancing the reflection-reducing function of the photocatalyst film 1 while maintaining the film strength and photocatalytic function of the photocatalyst film 1. In the photocatalyst film 1, the silicon oxide particles 6 are contained in an amount of 72 to 79 mass%, the titanium oxide particles 5 are contained in an amount of 13 to 18 mass%, and a binder material whose main component is silicon oxide is contained in an amount of 8 to 14 mass%, with respect to the total amount of the silicon oxide particles, the titanium oxide particles, and the binder material. The silicon oxide particles have an average particle diameter of 30 to 200 nm, the titanium oxide particles have an average particle diameter of 5 to 20 nm, and the average particle diameter of the silicon oxide particles is five times or more of the average particle diameter of the titanium oxide particles. Assuming that the photocatalyst film has a film thickness T, 80% or more of the titanium oxide particles are localized in a region from the surface of the glass sheet 2 to 0.6T. |
