Photocatalyst composite material

Abstract

A photocatalyst composite material includes a particle core and a particle shell, the particle core material is alumina particles, the particle shell material comprises the components of aluminum oxide, zinc dioxide and graphene, particle shell surface is coated with the graphene, and the particle shell and the particle core are in polyfunctional compound bonded connection. The beneficial effects are as follows: compared with the prior art, a synthesized particle-shell-type metal photocatalyst composite material can effectively utilize visible light, has the effects of decomposition of formaldehyde and nitrogen oxides and bacteriostat, may further enhance the conversion efficiency of photovoltaic cells, and overcomes the weakness of unstable performance and easy effect attenuation of traditional photocatalysts.

Description

technical field [0001] The invention relates to a particle shell type metal photocatalyst composite material. Background technique [0002] In response to the demand for visible light photocatalysts, some photocatalysts are also ion-modified so that their energy levels are within the absorption range of visible light. However, such ion-modified photocatalysts are nothing more than implanted transition metal ions (Cr, V, Ag) And non-metal ions (C, N, H) and so on. Most of these ion-implanted photocatalysts have relatively unstable energy levels at the point of implantation, so the reaction to visible light is not very stable, and their visible light catalytic ability tends to weaken with time. Contents of the invention [0003] At the same time, it can react in both ultraviolet and visible light bands. [0004] In order to achieve the above object, the technical solution adopted by the present invention to solve the technical problems is: a photocatalyst composite materia...

AI Technical Summary

Problems solved by technology

[0002] In response to the demand for visible light photocatalysts, some photocatalysts are also ion-modified so that their energy levels are within the absorption range of visible light. However, such ion-modified photocatalysts are nothing more than implanted transition metal ions (Cr, V, Ag) And non-metallic ions (C, N, H), etc.

Most of these ion-implanted photocatalysts have relatively unstable energy levels at the point of implantation, so the reaction to visible light is not very stable, and their visible photocatalytic ability tends to weaken over time.