Enhanced Fenton, photo-Fenton and peroxidase-like activity and stability over Fe3O4/g-C3N4 nanocomposites

Fe3O4/g-C3N4 nanocomposite efficiently degraded Rhodamine B via Fenton and photo-Fenton reactions, mimicked horseradish peroxidase-like activity for TMB oxidation, and oxidized dopamine showing potential for use in biocatalysis.