钛基La掺杂SnO2-RuO2电极的制备及其电化学氧化焦化废水  

Preparation of Ti-based La-doped SnO2-RuO2 electrode and electrochemical oxidation treatment of coking wastewater

作　　者：孙岩柏[1] 郝文亭 王维大[1] 孟青 杜璇 郭艳琴 李卫平[1] SUN Yan-bai;HAO Wen-ting;WANG Wei-da;MENG Qing;DU Xuan;GUO Yan-qin;LI Wei-ping(School of Energy and Environment of Inner Mongolia University of Science and Technology,Baotou 014010,China;Qingyang Ecological Environment Bureau,Qingyang 745000,China)

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]庆阳市生态环境局,甘肃庆阳745000

出　　处：《应用化工》2021年第1期126-129,共4页Applied Chemical Industry

基　　金：内蒙古自治区自然科学基金项目(2018LH04003);包头科技计划重点领域技术攻关项目(2017Z1009-1);内蒙古科技大学创新基金资助项目(2016QDL-B08)。

摘　　要：采用溶胶-凝胶法制备了Ti/SnO2-RuO2、Ti/SnO2-RuO2-La两种电极,探究稀土La对钛基SnO2-RuO2电极的改性效果,考察了电极在不同条件(电流密度、温度及pH)下电化学氧化焦化废水中COD的去除效果。结果表明,Ti/SnO2-RuO2-La电极对焦化废水中有机物有较好的降解效果,在电流密度10 mA/cm^2,温度30℃,pH为8,电化学氧化30 min时,焦化废水中COD去除率可达85.06%。In order to investigate the modification effect of rare earth La on titanium-based SnO 2-RuO 2 electrodes,two electrodes,Ti/SnO2-RuO2 and Ti/SnO2-RuO2-La,were prepared by sol-gel method.The removal effect of COD in coking wastewater by electrochemical oxidation under different conditions(current density,temperature and pH)was investigated.The results show that Ti/SnO2-RuO2-La electrode has a good degradation effect on organic matter in coking wastewater.The current density of 10 mA/cm 2,a temperature of 30℃,a pH of 8 and an electrochemical oxidation for 30 min,the COD removal rate in coking wastewater can reach 85.06%.

关 键 词：LA掺杂 Ti/SnO2-RuO2 电化学氧化 焦化废水 

分 类 号：TQ021.09[化学工程] TQ050.41