采用电沉积法制备了稀土和氟树脂等共掺杂的新型二氧化铅电极,并用于声电氧化体系中作为阳极处理典型模拟染料废水.考察了声电耦含氧化条件下的协同因子变化,发现PbO2/Ti电极和La- PbO2/Ti电极作阳极时,协同因子分别为1.29、1.36.考察并优化了该氧化镧掺杂电极用于声电氧化体系的作用因素,结果表明,在功率为49.58W/cm2、频率为50Hz、阳极电极为La-PbO2/Ti电极、电流密度为71.43mA/cm2、硫酸钠为14.2g/L的条件下,200mg/L的亚甲基蓝模拟废水经过2h后去除率达到89.51％.通过GC-MS、IC等分析手段检测了中间产物,提出了亚甲基蓝可能的降解途径.%A novel lead dioxide electrodes co-doped with rare earth (La2O3) and polytetrafluoroethylene (PTFE) were prepared by the electrochemical deposition and applied as anodes for the degradation of typical dye wastewater (methylene blue) in the sono-electrochemical system. The sono-electrochemical syngestic factors are respectively 1.29 and 1.36 by using PbO2/Ti and La-PbO2/Ti as anode. Further different effects containing vary electrodes, ultrasonic frequency, power, pollutant concentration, electrolyte concentration, current intensity were investigated, the result showed that the removal of 200mg/L methylene blue reached to 89.51% under the condition of 49.58W/cm2 power, 50Hz frequency, La-PbO2/Ti used as the anode, 71.43mA/cm2 current density, 14.2g/L sodium sulfate after reaching 2h. The intermediates were monitored by the methods of GC-MS, IC, and then the degradation pathways were proposed.
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