Synergistic radical generation and electron transfer mechanisms in oxygen-deficient Co3O4: bridging defect concentration and catalytic efficiency in PMS-based AOPs

Abstract

A two-step pyrolysis procedure was carried out to precisely control the oxygen vacancy content in ZIF-67-derived Co₃O₄ nanocubes. Higher concentrations of oxygen vacancies can significantly enhance the electron transfer ability of the material, thereby promoting the generation of ROS and enhancing the degradation of tetracycline (TC).