Degradation Properties of Ti/Sb-SnO2 Electrodes Containing Different Intermediate Layers for Phenol
The electrocatalytic degradation performances of the Ti/Sb-SnO2 electrodes with Ni,Co and Mn intermediate layers prepared by thermal oxidation for phenol were studied.The microstructure and morphology of the intermediate layers and the outer active layers were characterized by XRD,SEM and EDX.The content of phenol and intermediate material degraded with different electrodes in the phenol solution was compared by UV-Vis spectrophotometer and measuring COD.In the meantime,the influence of different intermediate layers on the service life of anode was investigated by the accelerated life test.The experimental results showed that,after 10h,the phenol degradation efficiency with Ti/Ni/Sb-SnO2 electrode almost reached 100% and the COD was 18mg/L,but the electrode was irreversibly damaged within 20min under the accelerated life test.Comparing with Ti/Ni/Sb-SnO2,the degradation efficiency of phenol in Ti/Co/Sb-SnO2 electrode was worse because the COD was 43mg/L,but the accelerated life was 20.8h.For Ti/Mn/Sb-SnO2 electrode,the COD was only 50mg/L,but the accelerated life reached to 289h.Therefore it may be concluded that the different intermediate layers have a notable effect on the structure,morphology,service life and the electrocatalytic activity of anode.
Ti/Sb-SnO2 electrode Electrocatalytic oxidation Phenol solution Service life of electrode
Zhen Zhang Qianqian Sun Yinping Si
School of Chemistry and Chemical Engineering, South China University of Technology, the Key Laborato National Testing and Quality Supervision Center of Furniture, Shunde 528300, Guangdong, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
420-426
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）