화학공학소재연구정보센터
Journal of the Electrochemical Society, Vol.166, No.8, B735-B741, 2019
TiO2/(1-butyl-3-methylimidazolium hexafluorophosphate) Based Sensor: A Strategy for the Detection of Cinnamaldehyde
An ultrasensitive voltammetric sensor has been developed for selective determination of cinnamaldehyde (CNN) based upon electrocatalytic properties of titanium oxide and (1-butyl-3-methylimidazolium hexafluorophosphate). The fabricated sensor was characterized by transmission electron microscopy (TEM) and electron impedance spectroscopy (EIS). The electrochemical behavior of cinnamaldehyde at the modified sensor was studied using square wave voltammetry as a function of concentration of cinnamaldehyde. This titanium oxide and ionic liquid based sensor displayed excellent electrocatalytic activity toward reduction of cinnamaldehyde. Under optimized experimental conditions, the reduction peak current was linear over the concentration range from 0.02 mu M to 0.14 mu M, with limit of detection (LOD) and limit of quantification of 2.6 nM and 8.0 nM respectively. The fabricated sensor was also successfully employed for the analysis of cinnamaldehyde in real samples. (C) 2019 The Electrochemical Society.