碳纳米管修饰电极对苯二酚3种异构体的研究  

Electrocatalysis and Simultaneous Determination of Dihydroxybenzene Isomers at Carbon Nanotubes Modified Glassy Carbon Electrode

作　　者：王卫星[1] 朱宇[1] 崔艳萍[1] 徐芬[1] 

机构地区：[1]中国地质大学(武汉)环境学院,湖北武汉430074

出　　处：《环境科学与技术》2013年第4期74-78,共5页Environmental Science & Technology

基　　金：国家自然科学青年基金(40902070);中央高校基本科研业务费专项资金摇篮计划(CUG110414);中国地质大学(武汉)教学实验室开放基金资助项目(SKJ201112)

摘　　要：文章应用循环伏安法(CV)研究了邻苯二酚(CC)、对苯二酚(HQ)和间苯二酚(RS)在多壁碳纳米管修饰的玻碳电极(MWNTs/GCE)表面的电催化氧化行为,同时对pH、扫描速度、温度等试验条件的影响也进行了研究。结果表明:MWNTs/GCE电极对CC、HQ和RS均表现出较好的电催化和电分离作用;在高浓度HQ和RS存在条件下,CC的氧化峰电流在0.05～7.00mmol/L范围内与浓度呈良好的线性关系,相关系数R^2=0.9989;修饰电极实现了对实际废水中苯二酚三种异构体的同时测定。Simultaneous determination of catechol （CC）, hydroquinone （HQ） and resorcinol （RS） was investigated by cyclic voltammetry based on carbon nanotubes modified glassy carbon electrode （MWNTs/GCE）. Influence of test conditions was studied, such as pH, scanning speed and temperature. Results suggested that MWNTs/GCE exhibited strong electricity catalytic and stable recognition ability toward dihydroxybenzene isomers. Under the condition of high concentration of HQ and RS, the oxidation peak currents of CC increased linearly with concentration at the range of 0.05-7.00 mmol/L, and the linearly coefficient was 0.9989. The prepared electrode successfully achieved simultaneous determination of dihydroxybenzene isomers in actual wastewater.

关 键 词：苯二酚异构体 多壁碳纳米管 修饰电极 同时测定 

分 类 号：X832[环境科学与工程—环境工程]