摘要
为制备高效稳定的用于电催化去除氯代有机物的电极,采用扫描电子显微镜和电催化脱氯实验考察不同聚吡咯掺杂离子对Pd/PPY/Ni复合电极的形貌和电催化加氢脱氯性能的影响.将制备的电极在强吸附性阴离子存在情况下,考察其电催化性能的变化.结果表明,掺杂离子对复合电极的形貌和电催化性能有显著的影响,对甲苯磺酸掺杂的聚吡咯对应的Pd/PPY(PTS)/Ni电极有最高的电催化加氢脱氯效率(高达91.1%),高氯酸钠掺杂的聚吡咯对应的电极电催化性能最差.电催化体系中强吸附离子(ClO4-,Cl-)的存在对电极性能有微弱影响,表明电极具有良好的稳定性,可高效去除水中的氯酚类氯代有机物.
Electrocatalytic hydrodechlorination（ECH） is an efficient method for dechlorination of chlorinated organic pollutants.Preparation of working electrode used in ECH is of great importance.Dopant ions doped in polypyrrole had effects on Pd/PPY/Ni composite electrode.The influences of dopant ions on morphology and ECH performance of composite electrode were investigated.The removal rates of 2,4-DCP for Pd/PPY（PTS）/Ni electrode reached 91.1%,higher than others,especially than that of Pd/PPY（NaClO4）/Ni.The effects of strongly adsorbed anions（ClO4-,Cl-） in catholyte on electrochemical hydrodechlorination activity of the composite electrode via removal of 2,4-DCP were studied.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2013年第6期48-52,共5页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50978066)
国家创新团队资助项目(51121062)
城市水资源与水环境国家重点实验室(哈尔滨工业大学)面上项目(2010DX03)
关键词
电催化加氢脱氯
掺杂离子
形貌
脱氯性能
强吸附离子
electrocatalytic hydrodechlorination
dopant ions
morphology
dechlorination performance
strongly adsorbed anions
