Preparation of carbon paste electrode with polypyrrole / titanium dioxide modified by Deferasirox and its application as nanosensor

In this study developed a simple and effective method for the preparation of carbon paste, Polypyrrole / titanium dioxide electrode modified by Deferasirox and its application as a nanosensor. This modifiedcarbon paste electrode with the nanocomposite was used as an indicator electrode for determination ofFe3+. The electrochemical behavior of Fe3+ on this electrode was studied by cyclic voltammetry and effective parameters such as composition of electrode, pH of solution, type of buffer and potential scan rate have been optimized. The prepared nanosensor showed enough stability and good response to Fe3+ inthe concentration range of 50-300 μM with a detection limit of 25 μM in the phosphate buffer solution of pH= 7. The functional groups were examined by FTIR spectroscopy and the size of nanocomposite was determined by SEM analysis. This modified electrode could be applied to determine Fe3+ in real samples

Keywords:

Carbon paste electrode , Polypyrrole / TiO2 , Deferasirox ¤Nanosensor