V2AlC@V2O5/TiO2 heterojunction composite photocatalyst, preparation method, and application thereof

Abstract

A composite photocatalyst, comprising V2AlC@V2O5/TiO2 heterojunction. The composite can be either supported or unsupported. Additionally, a process for producing this composite, particularly V2AlC@V2O5/TiO2, involves the steps of mixing a titanium precursor and an alcohol solvent, and stirring to obtain a first solution; mixing an acid with an alcohol solvent, and stirring to form a second solution; mixing the second solution and the first solution, and stirring to obtain a third solution; dispersing V2AlC in the alcohol solvent; adding the dispersed V2AlC to the third solution to get a suspension, and stirring the suspension for a predetermined period; drying the suspension to obtain a dried product; grinding the dried product into fine powder; and calcining the ground product to obtain the composite. The composite photocatalyst can also be used in a CO2 reduction process, wherein the photocatalyst is irradiated in a photoreactor system.

Dependencies are inferred from the claim text.