Preparation method of efficient photocatalytic self-cleaning glass

Abstract

The invention relates to the technical field of glass material preparation, in particular to a preparation method of efficient photocatalytic self-cleaning glass. The preparation method comprises thefollowing steps: mixing butyl ester titanate and absolute ethyl alcohol; doping ferric chloride and polyvinyl alcohol under an acid condition; hydrolyzing to obtain titanium dioxide sol; coating a glass plate to obtain efficient photocatalytic self-cleaning glass, wherein iron ions are reacted with titanium dioxide, so that the photocatalytic efficiency of the titanium dioxide is increased; underthe action of titanium dioxide loaded with a layer of silicon dioxide film, increases the adsorption of to a degradation product is increased; stronger hydroxyl groups are formed on the surface, and block the combination of electron hole pairs to generate strongly oxidizing active hydroxy, so that the photocatalytic reaction rate is increased; the titanium dioxide is partially compounded with thesilicon dioxide, so that a film becomes rough, the adsorption performance is enhanced, the efficient photocatalytic self-cleaning glass can change from hydrophobic to hydrophilic quickly and keeps a smaller contact angle, and the hydrophilic property of the self-cleaning glass is improved; and the efficient photocatalytic self-cleaning glass has a wide application prospect.

Description

technical field

[0001] The invention relates to the technical field of glass material preparation, in particular to a preparation method of high-efficiency photocatalytic self-cleaning glass. Background technique

[0002] Glass is an indispensable part of our daily life. While the extensive use of glass brings light and beauty to people, it also brings many problems to people, such as: cleaning problems, rain and fog problems, etc. After long-term use of glass, the surface will be contaminated with a lot of dust and oil, which requires a lot of manpower and material resources to clean. Therefore, self-cleaning glass came into being.

[0003] Self-cleaning glass refers to a new glass coated with a transparent titanium dioxide photocatalyst film on the surface of flat glass. When this titanium dioxide photocatalyst called "photocatalyst" encounters sunlight, fluorescent lamps, and ultraviolet rays, it will turn organic matter and pollutants attached to the surface into CO in ...