Fe-based s-scheme heterojunction photocatalytic composite material, preparation method and application thereof

Abstract

The present invention discloses an Fe-based S-scheme heterojunction photocatalytic composite material, a preparation method and an application thereof, belonging to the technical field of metal-organic framework materials. The method comprises the following steps: adding Bi2Fe4O9 into a mixed solution of terephthalic acid and FeCl3·6H2O, performing ultrasonic mixing followed by a solvothermal reaction; after the reaction, performing post-treatment to obtain the S-scheme MIL101(Fe) / Bi2Fe4O9 photocatalyst. The present invention adopts a solvothermal method to prepare the S-scheme Bi2Fe4O9 / MIL101(Fe) photocatalyst, which, under visible light and jointly with K2S2O8, has a good degradation effect on tetracycline and is recyclable. Moreover, the preparation method provided by the present invention is simple, facilitating widespread application.