Method for loading TiO2 photocatalyst on ferromagnetic metal thin film

Abstract

A method for loading TiO2 photocatalyst on a ferromagnetic metallic film comprises the steps: hollow microballon particle material is taken as a substrate, ferromagnetic metal Ni or Co is taken as sputtering target material, and the metal Ni or Co is evenly coated on the hollow microballon by magnetron sputtering; then, the coated hollow microballon is taken as the material of the substrate, metal Ti as the sputtering target material, and a layer of metal Ti is evenly coated on the microballon which is plated with a metallic film by sputtering; after that, a vacuum chamber is simultaneously pumped with argon and oxygen to lead the Ti to be oxidized as TiO2 at the same time of sputtering, and the TiO2 is sedimentated on the hollow microballon coated by the metal Ni or Co. The method has the advantages that as the ferromagnetic metal materials are sedimentated on the hollow microballon, the TiO2 photochemical catalyst film material prepared by taking the ferromagnetic metal materials as the substrate can be attracted by a magnetic collector, and is convenient for centralized collection when not in use, so that the metallic film can be recycled, saves resource and avoids the secondary pollution for the environment.

Description

(1) Technical field [0001] The invention relates to a vacuum coating process, in particular to a TiO 2 A method in which photocatalysts are supported on ferromagnetic metal thin films. (2) Background technology [0002] In recent years, the pollution control of water bodies has become a common concern of all countries in the world. People have noticed that the anatase phase TiO 2 The photocatalytic reaction can effectively degrade organic pollutants in water, and this technology has become a sewage treatment method with important application prospects. In the reported use of TiO 2 In the research of photocatalytic degradation of harmful pollutants in water, most of them use TiO 2 Particle dispersion suspension system, because petroleum organic pollutants are insoluble in water and float on the water surface, TiO insoluble in water 2 The density of TiO is greater than that of water, and it will sink to the bottom of the water, so if this suspension system is used, it will...

AI Technical Summary

Problems solved by technology

Since the pollution of water bodies is often in very open waters, it is a big problem to recover them after putting in photocatalysts to complete the decomposition of organic matter, and nano-TiO 2 Remaining in water will also cause secondary pollution, so nano-TiO 2 If the problem of separation and recovery from water cannot be solved well, it will greatly limit the production of TiO 2 The widespread use of photocatalysts