【摘要】 以二氧化钛纳米管阵列（TiO₂NTs）为基体,利用脉冲电沉积的方法将Pr掺杂的PbO₂修饰到TiO₂NTs管中,制备出新型电极材料Ti/TiO₂NTs/nanoPbO₂-Pr用来降解有机废水。通过循环伏安测试（CV）和线性伏安法（LSV）等手段对电极性能进行评估,研究表明,新型电极材料Ti/TiO₂NTs/nanoPbO₂-Pr具有高的电催化活性。利用扫描电子显微镜（SEM）、X射线衍射仪（XRD）、X射线光电子能谱（XPS）等对其进行表面形貌、晶形结构和元素组成进行研究。结果表明,通过脉冲电沉积成功将Pr-PbO₂沉积到TiO₂纳米管中,其中元素Pr是以Pr₂O₃形式存在。亚甲基蓝降解实验证明,Ti/TiO₂NTs/nanoPbO₂-Pr电极降解120min后亚甲基蓝的去除率高达99.8%。更多还原

【Abstract】 A novel Ti/TiO₂nanotube arrays（NTs）/PbO₂-Pr electrode for the degradation of organic wastewater was fabricated by the pulse electrodeposition method.Pr-doped PbO₂nanoparticles were deposited on the TiO₂nanotube array substrate.Cyclic voltammetry（CV）and linear sweep voltammetry（LSV）were utilized to study the electrochemical performance of electrodes.The results demonstrate that Ti/TiO₂NTs/nano PbO₂-Pr electrodes（P）possess excellent electrocatalytic properties.The morphology,crystallinity and elemental composition of Ti/TiO₂NTs/nano PbO₂-Pr electrodes were characterized by scanning electron microscopy（SEM）,X-ray diffraction（XRD）,X-ray photoelectron spectroscopy（XPS）.Theβ-PbO₂nanoparticles are dispersed inside the TiO₂nanotubes and the doped Pr exists in the form of Pr₂O₃.The degradation of methylene blue was carried out to test electrocatalytic performance of this novel electrode.A99.8%removal of methylene blue of Ti/TiO₂NTs/nano PbO₂-Pr electrode within 120 min indicates its good activity.更多还原