摘要
采用涂层热分解法制备含中间层Sn O_2-Sb O_2-Ir O_2、中间层Ti/Sn O_2-Sb O_2-Ir O_2/Sn O_2-Sb O_2-Ce O_2电极,研究了中间层数对电催化性能的影响。结果表明含有5层中间层的电极,可有效提高活性层的比表面积,使活性层变得更致密,会使电极的使用寿命和催化活性提高,含有5层中间层的电极寿命是不含中间层的25倍。在Na Cl溶液中降解亚甲基蓝的效果比在Na_2SO_4溶液中好,最佳的降解条件为0.1 mol/L的Na Cl溶液中,槽压为4.0 V。
Electrodes containing interlayer Sn O2-Sb O2-Ir O2 or interlayer Ti/Sn O2-Sb O2-Ir O2/Sn O2-Sb-Ce O2 were prepared by coating thermal decomposition. The effects of the number of interlayer on electrocatalytic activity were investigated. The results showed that 5- interlayer Sn O2-Sb O2-Ir O2 could effectively improve the surface structure of active coating,make it more smooth and compact,which lead to a high lifetime and electrocatalytic activity. The lifetime of the electrode with 5-interlayer was 25 times to electrode which without interlayer. Degradation of 20 ppm Methylene Blue wastewater in Na Cl electrolyte was better than in Na2SO4 electrolyte. Optimum degradation conditions were 0. 1 mol/L Na Cl and cell voltage 4. 0 V.
出处
《染料与染色》
CAS
2016年第3期55-59,共5页
Dyestuffs and Coloration
