Method for preparing ultra hydrophilic coat of titanium dioxide by using titanium trichloride as precursor

Abstract

The preparation method of titanium dioxide super-hydrophilic coating using titanium trichloride as precursor body includes the following steps: firstly, using titanium trichloride as precursor body, preparing titanium dioxide aqueous colloid with a certain concentration, using surface of metal copper, stainless steel or glass as carrier, adopting impregnation method or brush coating method to apply the titanium dioxide aqueous colloid on the surface of carrier, drying at proper temperature and irradiating by UV-light so as to form powder colloid coating layer with super-hydrophilic property on the carrier surface.

Description

technical field

[0001] The invention relates to a method for preparing a titanium dioxide superhydrophilic coating. By preparing a titanium dioxide superhydrophilic colloid with titanium trichloride as a precursor, coating it on the surface of a carrier and performing subsequent treatment, the titanium dioxide The surface of the coated carrier has stable superhydrophilic properties. It belongs to the field of chemical engineering. Background technique

[0002] As a photocatalyst, titanium dioxide has attracted people's attention in recent years because of its unique characteristics. Under the condition of ultraviolet light irradiation, titanium dioxide can use its strong oxidation ability to decompose different substances such as harmful gas molecules, bacteria and viruses, and convert them into harmless substances such as water and carbon dioxide, without secondary pollution. This characteristic of titanium dioxide has been applied to environmental purification, antibacte...