A Novel of Multi-wall Carbon Nanotubes/Chitosan Electrochemical Sensor for Determination of Cupric ion
A multi-wall carbon nanotubes/Chitosan electrochemical sensor had been fabricated by dropping CHS/MWNT solution directly onto the GC surface.The sensor was charactered by cyclic voltammetry and AC impedance with K3Fe(CN)6 as a electrochemical probe; Cyclic voltammograms(CV)and electrochemical impedance spectroscopy(EIS)indicated that the active area and electrochemical behavior of the sensor increased and improved significantly after the electrode was modified by carbon nanotubes dispersed by the chitosan.The sensor showed good electrocatalytic activity of K3Fe(CN)6.Also,from the cyclic voltammograms,we can see the process was diffusion controlled on the bare electrode and kinetics and diffusion controlled on the modified electrode.Finally Cu2+responsed sensitively at the sensor which supplied a new method for the detection of Cu2+.
Funeng Tan Lei Li
Chemical and engineering institute,Wenshan University,Wenshan 663000,Yunnan,China
国际会议
上海
英文
1-5
2017-12-28（万方平台首次上网日期，不代表论文的发表时间）