Electrocatalytic Oxidation of Sulfadiazine on a NiO/MWCNT Film Modified Glassy Carbon Electrode

摘要

This work describes the preparation of multi-walled carbon nanotubes (MWCNT) and nickel oxide particles (NiO) composite modified electrode. The electrochemical catalytic performance of the new modified electrode toward sulfadiazine was studied by voltammetric method. The modified electrode exhibited good catalytic performance for the electrochemical oxidation of sulfadiazine at potential of 0.9 V, which was 0.2 V lower than that obtained by a normal glassy carbon electrode. The results of amperometric study suggested that the anodic current of the modified electrode linearly increased against the concentration of sulfadiazine in the range 1.0- 7.9 uM.