A new photocatalyst, g-CN/CoFeO/BiMoO, was developed for purifying water contaminated with tetracycline antibiotics, showing effective removal and rapid recycling using magnets.
After four uses, the photocatalyst maintained high efficiency in degrading tetracycline and stable magnetic separation capabilities.
The degradation mechanism involved a double Z-type process that allows better separation of electrons and holes, resulting in lower ecotoxicity of degradation products, as confirmed by toxicity evaluations and seed cultivation tests.