Synthesis of the high durability photocatalytic materials with tertiary components

Abstract

The high durability, re-collectable and low-cost materials with tertiary (reduced graphene-TiO2-Fe3O4, denoted as GrTiFe) components for degradation of toxic organic compounds have been prepared from different precursors by coprecipitation and hydrothermal methods. By this procedure, TiO2 and Fe3O4 nanoparticles have been growing on the reduced graphene oxide. The as-synthesized nanocomposites have been characterized with X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope and magnetic hysteresis, and studied on the photo-degradation reaction of Moderacid Black (MDB). The result shows that the photocatalytic activity of as-synthesized composites is much higher than that of pure TiO2 nanoparticles and the composites can be easily collected from water using a magnet for reusing. In addition, the GrTiFe is also able to degrade the organic compounds under modeling sunlight radiation.