Preparation of multielement codoped nanaotitania film

Abstract

The invention discloses a method for preparing a multielement co-doped nano titanium dioxide film comprising the following steps: 1) adding ferric nitrate nonahydrate, silver nitrate and guanidine hydrochloride solid into abatase titanium dioxide solution to prepare a mixed solution; 2) sustainably magnetically stirring the mixed solution under the water bath condition and obtaining an uniform sol; 3) storing the sol at room temperature for 10-12 days to obtain aging solution, preparing a coating glass slide by the aging solution and drying; 4) heat-treating the dried coating glass slide at 350-450 DEG C for 1 hour to obtain the multielement co-doped nano titanium dioxide film. The titanium dioxide film of the invention has functions of achievement the red shift of the ultraviolet absorbance, visible light response of the photocatalysis and no light antibacteria.

Description

Preparation method of multi-element co-doped nano titanium dioxide film technical field The invention relates to a method for preparing a multi-element co-doped nano titanium dioxide film. Background technique Nano-titanium dioxide film is an important functional material, which has important application prospects in the storage and utilization of solar energy, photochemical conversion and environmental treatment of organic pollutants. There are many preparation methods for nano-TiO2 thin films, among which the thin-film preparation method based on the sol-gel method is the most researched TiO2 thin-film preparation method at present. The advantage of this method is that it is easy to form a large-area film and be fixed on a complex-shaped substrate. At present, the sol-gel method is used to prepare thin films on the surface of ordinary glass. Titanium dioxide sol is prepared by using sol-gel process as raw material, and then coated to prepare titanium dioxide thin film. ...

AI Technical Summary

Problems solved by technology

There are few studies on multi-element doped titanium dioxide thin films, and there are no relevant patents and literature reports