中文摘要：

在Ti基体上，采用电沉积法制备了镨（Pr）和聚乙烯毗咯烷酮（PVP）掺杂的Ti／SnO2-Sb20CPhO3-PVP-PbO2电极．SEM测试显示，Ti／SnO2-Sb20CPhO3-PVP-PbO2电极表面颗粒细化，镀层结构更加致密和均匀．XRD分析说明掺杂可以使电极的表面颗粒变小．循环伏安（CV）测试表明，共掺杂改性后的电极电催化活性明显提高．强化寿命测试显示Ti／SnO2-Sb20CPhO3-PVP-PbO2电极稳定性更好，使用寿命更长．将所制备的电极应用于甲基蓝（MB）模拟染料废水的降解测试，与常规的Ti／Pb02电极相比，Ti／SnO2-Sb20CPhO3-PVP-PbO2电极对甲基蓝具有更好的脱色率和COD除去率．降解120min后，对30mg·L-1甲基蓝的去除率可达99％，对COD去除率为87．9％．

英文摘要：

The titanium （Ti） based lead oxide （PbO2） electrodes doped with praseodymium oxide （Pr2O3） and polyvinylpyrrolidone （PVP） were prepared by electrodeposition. The surface morphologies and structures of the as-prepared thin films were characterized by scanning electron microscopy （SEM） and X-ray diffraction （XRD） technique, respectively. The results showed that the denser and more uniform coatings with smaller particles and larger surfaces were obtained by doping, which modified the micro-structure of the Ti/SnO2-Sb2O3/Pr2O3-PVP-PbO2 electrode. Cyclic voltammetry （CV） was also used to study the electrocatalytic activity of electrodes and higher oxidation capacity was obtained with the Ti/SnO2-Sb2O3/Pr2O3-PVP-PbO2 electrode. The accelerated life of Ti/SnO2-Sb2O3/Pr2O3-PVP-PbO2 electrode was considerably longer than that of undoped anode. Compared with conventional Ti/PbO2 electrodes, the Ti/SnO2-Sb2O3/Pr2O3-PVP-PbO2 electrodes exhibited higher decolorization rate and removal rate of COD, reaching 99% and 87.9%, respectively, after the electrolysis time of 120 min during the process of degrading simulative dyeing waste water of methylene blue. The good electrocatalytic performance of Ti/SnO2-Sb2O3/Pr2O3-PVP-PbO2 makes it a promising anode for treatment of organic pollutants in aqueous solutions.