Photocatalytic Degradation of Pentabromophenol by N-Doped ZnO
Keywords:Photocatalytic, N-Doped ZnO, Degradation, Pentabromophenol, Containment.
A high activity photocatalysts N-ZnO has been synthesized by hydrothermal method. The characterization of the prepared N-ZnO nanocomposite has been examined by SEm, TEM, Ultraviolet-visible diffuse reflectance spectroscopy, X-ray diffraction, Elemental analysis, Brunauer-Emmer Teller surface area. Under irradiation (>360 nm), N-ZnO shows high photocatalytic activity for the debromination of pentabromophenol. The results of the trapping agent experiments show that the rate determining step in the degradation reaction of pBp with N-ZnO is the rate of electron accumulation in the conductive band. The N-ZnO nanocomposite exhibits excellent photostability after four run experiments. The possible photoreductive mechanism has been proposed. This study provides an efficient method to removal of pentabromophenol.
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