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A glassy carbon electrode (GCE) was modified with a polybutylene succinate/epoxidized palm oil (PBS/EPO) clay nanocomposites; by using solution evaporation method, a new modified electrode PBS/EPO-clay nanocomposite was produced. The redox process of K4[Fe(CN)6] during cyclic voltammetry was studied using the PBS/EPO-clay nanocomposites. It was found that the peak separation (ΔEpa-c) between the redox peaks of Fe(II)/Fe(III) in an aqueous solution of 0.1 M KClO4 and the current ratio of redox current peaks, (Ipa/Ipc) was ≈ 1 for the modified working electrode with PBS/EPO-clay nanocomposites, indicating good reversibility with weak conductivity of the modified electrode. The physical properties of the modified electrode PBS/EPO-clay nanocomposites included good hardness, high adhesion to the glassy carbon surfaces of electrode collectors, solubility and good stability of the PBS/EPO-clay nanocomposites at different pH media. Also, the sensitivity of the electrochemical analysis by cyclic voltammetric method was significantly dependent on the pH and the scan rate (SR). It was found that the couple of redox current peaks of K4[Fe(CN)6] in KClO4 solution were a reversible process: Fe(III)/Fe(II).

A Voltammetric Properties of Biopolymer Nano-Composites Based Polybutylene Succinate/Epoxidized Palm Oil