Sonocatalytic Fe3O4 cluster microspheres/g-C3N4 composite for efficient removal of organic dyes

In this study, Fe3O4/g-C3N4 composite was fabricated via facile hydrothermal techniques. The Fe3O4/g-C3N4 product was used as catalysts for degradation of methylene blue (MB), rhodamine B (RhB) and methyl orange (MO) degradation with ultrasonic-assisted and H2O2. To characterize the structure and morphology of the as-prepared product the X-ray diffraction (XRD) and scanning electron microscopy (SEM) were examined. The integration of H2O2 and catalyst dosage enhanced the sonocatalytic degradation of dyes. The catalysts after reaction can easily be separated and reused with external magnetic fields. The experimental results show that catalytic activity of as-synthesized Fe3O4/g-C3N4 decreased insignificantly in the dye degradation after four recycles.