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采用超声涂覆-热分解法制备稀土金属Ce掺杂Ti/SnO_2-Sb电极,利用SEM对电极表面形态进行表征,并考察了Ce掺杂量和电流密度对修饰电极电催化性能和稳定性的影响。结果表明,掺杂后电极涂层中引入了新物质CeO_2,优化了电极的表面结构和形态;制备得到的电极对苯酚和对甲酚都有较好的降解效果,当Ce掺杂量为1%时降解苯酚性能最优,Ce掺杂量为2%时降解对甲酚性能最优;在最优掺杂量下,当电流密度为10 m A/cm2时降解苯酚性能最佳,电流密度为20 m A/cm2时降解对甲酚性能最佳。
The Ce-doped Ti / SnO_2-Sb rare earth metal was prepared by ultrasonic coating-thermal decomposition. The surface morphology of the electrode was characterized by SEM. The effects of Ce doping amount and current density on the electrocatalytic performance and stability of the modified electrode influences. The results showed that CeO 2 was introduced into the electrode coating to optimize the surface structure and morphology of the electrode. The prepared electrode had better degradation effect on phenol and p-cresol. When the Ce doping amount was 1 %, The degradation of p-cresol was the best when the content of Ce was 2%; when the current density was 10 m A / cm2, the degradation of phenol was the best, the current density The degradation of p-cresol was best at 20 m A / cm2.