Photodegradation of PCBs in Waste Transformer Oil by Fe3O4/TiO2 nanocomposite under visible light

Fe3O4/TiO2 nanocomposites were prepared via a modified sol–gel method. The structure and morphology of the as-prepared composite was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDX) and transmission electron microscopy (TEM). poly chlorinated biphenyls (PCBs) are a class of chlorinated organic chemicals that do not easily degrade in the environment. We investigated the photodegradation of PCBs by Fe3O4/TiO2 nanocomposites in presence of visible light. The results show that the removal of PCBs almost complete by irradiation for 60 min and the optimum catalyst loading of Fe3O4/TiO2 for high photocatalytic activity was observed at 0.2 gL-1 mgL-1.

کلیدواژه ها:

PCB ، Transformer oil ، Nanoparticles ، Fe3O4 ، TiO2 ، photodegradation