以4A沸石为载体的含铁Fenton催化剂的制备及性能研究

Fenton reaction, as a kind of advanced oxidation technology, is considered to be one of the most promising technologies for the treatment of sewage. But Fenton reaction have the defects that limit its practical application, such as low pH, the need of stoichiometric amounts of iron salts and low efficiency of hydrogen peroxide. In this paper, a Fenton catalyst-4A zeolite supported iron oxide was prepared with the co-precipitation and ion exchange. The structure of the catalyst was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and its catalytic performance was evaluated by the phenol degradation experiments. The results showed that, compared with the corrpesponding iron oxides, the catalysts displayed lower efficiency for phenol degradation, but it showed outstanding stability confirmed by its lower iron leaching. This results indicated the potential application of this catalyst for wastewater treatment.