Solar photocatalysis glass and preparation method thereof

Abstract

The invention discloses a solar photocatalytic glass. The solar photocatalytic glass is of an AgX @ Ag surface structure and has photocatalytic performance under sunlight irradiation. Halogen-containing boron aluminum silicate glass is prepared by an ordinary high-temperature melting technique, and then subjected to ion exchange heat treatment, the prepared glass is of the AgX @ Ag surface structure, can catalyze and decompose organic matters and has good photocatalytic performance, therefore, a solid foundation is laid for a further research of preparation technologies of glass with photocatalytic performance under sunlight irradiation, and new ideas and methods are provided for allowing the glass to exhibit photocatalytic performance.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, and in particular relates to a solar photocatalytic glass and a preparation method thereof, which can be applied to the fields of photocatalysis, self-cleaning and the like. Background technique [0002] Environment and energy are major issues that directly affect the survival and development of human beings, and our country is facing particularly severe challenges in this regard. Photocatalytic technology can directly use solar energy to degrade and mineralize various organic and inorganic pollutants in the environment, and can convert low-density solar energy into high-density storable hydrogen energy, which is considered to be the most promising solution to environmental and energy problems One of the ways has broad development prospects. [0003] The core of photocatalytic technology is photocatalytic materials. Traditional photocatalytic materials generally use metal oxides or sulfid...

AI Technical Summary

Problems solved by technology

[0003] The core of photocatalytic technology is photocatalytic materials. Traditional photocatalytic materials generally use metal oxides or sulfide semiconductor compounds with large band gaps, such as TiO 2 , this type of material has insurmountable shortcomings: (1) narrow photoresponse range

(2) Low quantum yield

But the prepared TiO 2 Thin films usually do not have good photocatalytic activity, as TiO prepared by chemical vapor deposition or magnetron sputtering 2 The film is usually amorphous, or the content of anatase phase in the film is low, and the film is dense and has a low specific surface area, so the TiO prepared in this way 2 The photocatalytic activity of the film is not high or has no photocatalytic activity, so the TiO prepared in this way 2 Coated glass does not have self-cleaning properties

Although the preparation process of the sol-gel method is simple, the phase structure and composition of the film can be controlled, such as 100% anatase phase, and the film has a porous structure, but the sodium ions in the glass diffuse into the newly prepared film during heat treatment. TiO 2 thin film, greatly reducing the TiO 2 Photocatalytic activity of thin films

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