副教授
硕士生导师
教师拼音名称:yujianhua
学历:博士研究生
学位:工学博士
职称:副教授
毕业院校:中科院上海硅酸盐研究所
邮箱:
2020-06-08 青岛科技大学毕业生最喜爱的老师
2019-12-31 青岛科技大学先进工作者
2016-12-31 青岛科技大学先进工作者
最后更新时间:..
关键字:Nitrogen-doped graphene; Carbon Ionic Liquid Electrode; Hydroquinone; Electrochemistry; Electrochemical sensor
摘要:In this paper a solvethermal synthesized nitrogen-doped graphene (NG) was used as modifier on carbon ionic liquid electrode (CILE) to get a novel modified electrode, which was denoted as NG/CILE. An electrochemical hydroquinone (HQ) sensor was constructed with NG/CILE as working electrode. Electrochemical behaviors of HQ on NG/CILE were investigated by cyclic voltammetry with a pair of redox peaks observed. Compared with that of CILE, electrochemical responses of HQ were enhanced greatly with the peak-to-peak separation reduced. The result indicated good electrocatalytic ability of NG/CILE to the redox reaction of HQ. Under the optimal conditions a wider linear response between the peak current and HQ concentration was established in the concentration range from 0.2 to 800.0 mu mol L-1 accompanied by a detection limit of 0.625 mol L-1 (3 sigma). Furthermore, the as-proposed HQ sensor exhibited high sensitivity and good selectivity toward HQ detection, which was successful applied to the synthetic water samples analysis.
卷号:11
期号:8
是否译文:否