摘要
以电化学方法制备了Ti/TiO_2-NTs、Ti/TiO_2-NTs/Ag_2O、Ti/TiO_2-NTs/Ag_2O/PbO_2电极,用TEM、SEM、XRD等方法表征了3种电极表面的形貌。以Ti/TiO_2-NTs/Ag_2O/PbO_2电极作阳极,对100 mg/L的PFOA溶液进行降解。结果表明:在电流密度为30 mA/cm^2下降解180 min后,PFOA去除率可达99.47%,脱氟率高达87.53%,具有较高的电氧化能力。
Electrodes,including Ti/TiO2-NTs,Ti/TiO2-NTs/Ag2O and Ti/TiO2-NTs/Ag2O/PbO2,have been prepared by electrochemical methods,and the surface shapes of the three kinds of electrodes characterized by TEM,SEM and XRD,etc.Ti/TiO2-NTs/Ag2O/PbO2electrode as anodic electrode has been used for the degradation of 100 mg/L of PFOA solution.The results show that PFOA removing rate can reach 99.47%and the defluorination rate is as high as87.53%when current density is 30 m A/cm2,and degradation time 180 min,having comparatively high electrooxidation ability.
作者
卓琼芳
罗梅清
李永铭
杨波
易皓
王丽
崔恺
虢清伟
谢水波
林健聪
贺涛
Zhuo Qiongfang;Luo Meiqing;Li Yongming;Yang Bo;Yi Hao;Wang Li;Cui Kai;Guo Qingwei;Xie Shuibo;Lin Jiancong;He Tao(South China Institute of Environmental Science,Ministry of Environment Protection,Guangzhou 510655,China;Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation,College of Chemistry&Chemical Engineering,Shenzhen University,Shenzhen 518060,China;Yangdong Guangya Middle School,Yangjiang 529500,China;College of Civil Engineering,Nanhua University,Hengyang 421001,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2019年第3期30-34,共5页
Industrial Water Treatment
基金
水体污染控制与治理国家重大科技专项(2017ZX07202-001-007)
国家自然科学基金(21777106)
中央级公益性科研院所基本科研业务专项(PM-zx097-201602-059)广东省自然科学基金(2014A030313761)
广东省公益研究与能力建设(2017A020216014)
广东省应用型专项(2016B020240007
2015B020235004)
深圳市科技计划项目(ZDSYS201606061530079
JCYJ20150529164656097)
关键词
二氧化铅电极
电沉积
电氧化
全氟辛酸
lead dioxide(PbO2) electrode
electro-deposition
electro-oxidation
perfluorooctanoic acid(PFOA)
