- International Journal of Chemistry and Technology
- Vol: 1 Issue: 1
- Electrochemical pesticide sensor based on anthraquinone substituted copper phthalocyanine
Electrochemical pesticide sensor based on anthraquinone substituted copper phthalocyanine
Authors : Yeliz İPEK, M. Kasım Şener, Atıf Koca
Pages : 74-85
Doi:10.32571/ijct.342498
View : 8 | Download : 3
Publication Date : 2017-10-12
Article Type : Research
Abstract :In this study, a biomimetic selective pesticide electrochemical sensor based on copper phthalocyanine-anthraquinone hybrid (CuPc-AQ) was studied. Electrochemical activities based on Pc ring and anthraquinone substituent of the CuPc-AQ make it valuable material for electrochemical sensor studies in detecting of pesticides. Thin film of CuPc-AQ on ITO electrode (ITO/CuPc-AQ) was exposed to water samples containing eserine and carbofuran pesticides, separately. Then in order to observe the sensor behavior of the modified electrode, square wave voltammetry (SWV), electrochemical impedance spectroscopy (EIS), and double potential step chronocoulometry (DPSCC) techniques were used. When the ITO/CuPc-AQ electrode was doped with nano-platinum (nPt) or nano-gold (nAu) particles, the sensitivity of ITO/CuPc-AQ electrode increased. The lowest detection limit (DL) (1.23x10-9 mol dm-3) was obtained with ITO/CuPc-AQ-nAu electrode using electrochemical impedance spectroscopy technique.Keywords : Electrochemistry, Phthalocyanine, Pesticide sensor, Langmuir-Blodgett