Study on the Preparation, Characterization and Performance G-C3n4/Biocl For Tetracycline

Abstract

This study used the solvothermal method to successfully build a two-dimensional g-C3N4/ BiOCl composite photocatalyst materials heterojunction. Due to the rational loading of g-C3N4, the degradation rate of tetracycline using g-C3N4/BiOCl composite photocatalyst reached 90.22% in 1 h under simulated sunlight irradiation. The reaction rate constant is 0.0391 min-1, which is 2.41 and 1.26 times greater than those of sole g-C3N4 (0.0162 min-1) and BiOCl (0.0310 min-1), respectively. Furthermore, •O2- was shown to be the primary active substance in the degradation reaction by free radical capture experiments, •OH and h+ played a secondary role. This work provides a new strategy for the synthesis of efficient photocatalytic materials toward the degradation of tetracycline.

Keywords: nanocomposites, g-C3N4/BiOCl, Tetracycline, Photodegration