Ti/SnO_2-RuO_2电极电催化降解4-硝基苯甲醛的研究  

Electrocatalysis Degradation of 4-nitrobenzaldehyde by Ti/SnO_2-RuO_2 Electrode

作　　者：潘静[1] 赵晓梅[1] 张素素[1] 王昱豪[1] 何平[1] 

机构地区：[1]西南科技大学材料科学与工程学院,绵阳621010

出　　处：《武汉理工大学学报》2013年第12期135-139,158,共6页Journal of Wuhan University of Technology

基　　金：四川省科技支撑计划(2010GZ0300)

摘　　要：采用刷涂法制备Ti/SnO2-RuO2电极,并利用XRD、SEM进行了表征。该电极作为阳极,不锈钢电极作为阴极,对含4-硝基苯甲醛(4-NBA)的废水进行电催化降解处理,并对最佳的处理条件进行探讨。结果表明,当Na2SO4电解质浓度为0.08mol/L、电解电压为3V、pH为2.5时,处理180min后4-NBA的去除率达到79.8%,CODCr去除率达82.3%,且4-NBA的电催化降解符合一级动力学方程。Ti/SnO2-RuO2 electrode was prepared by brush coating method and the structural and morphological char-acteristics were investigated by X-ray diffraction and scanning electron microscopy. Electrocatalysis degradation of 4-nitro-benzaldehyde was investigated by using as-prepared electrode as anode and stainless steel electrode as cathode, and opti-mum conditions were discussed. It showed that the removal rates of 4-nitrobenzaldehyde and CODc, were 79. 8% and 82. 3%, respectively, within 180 rain in 0. 08 mol/L Na2 SO4 electrolyte solution at voltage of 3 V and pH 2, 5. Moreover, the degradation of 4-nitrobenzaldehyde fitted well with the first-order kinetics.

关 键 词：4-硝基苯甲醛 TI SnO2-RuO2电极 电催化 降解 

分 类 号：X783[环境科学与工程—环境工程]