Activated Carbon -ZnO Nanocomposite for Electrochemical Sensing of Acetaminophen

作者：Sivakumar Mani; Sakthivel Mani; Chen Shen Ming

来源：International Journal of Electrochemical Science, 2016, 11(10): 8363-8373.

DOI：10.20964/2016.10.51

• ZnO-AC
• acetaminophen
• electrochemical sensor

In this work, we reported the preparation of AC-ZnO by using simple chemical co-precipitation and ultrasonication techniques and investicated the electrocatalytic behaviour of acetaminophen ( ACP) at AC-ZnO modifed glassy carbon electrode. Then, the as prepared AC-ZnO was analyzed by using spectroscopy and electrochemical techniques such as Scanning Electron Microscopy ( SEM), Cyclic Voltammetry ( CV), Linear Sweep Voltammetry ( LSV) and Amperometry method. Fortunately, AC-ZnO modified glassy carbon electrode shows the better electrocatalytic behaviour towards ACP than ZnO-GCE and AC-GCE. Finally, from the amperometric i-t curve the electrochemical parameters were calculated by varying the resultant linear response current with the concentration of ACP over the range from 0.05 to 1380 mu M. In addition, the corresponding sensitivity and limit of detection ( LOD) were calculated of about 8.33 mu A mu M-1 cm(-2) and 0.83 mu M respectively. Eventually, the proposed AC-ZnO/ GCE was found as the suitable materials with unique stability, repetability and reproducibility towards ACP sensor.

• 出版日期2016-10