A facile synthesis of ZnO/Manganese hexacyanoferrate nanocomposite modified electrode for the electrocatalytic sensing of riboflavin

作者：Selvarajan S; Suganthi A^*; Rajarajan M^*

来源：Journal of Physics and Chemistry of Solids, 2018, 121: 350-359.

DOI：10.1016/j.jpcs.2018.06.005

• ZnO/MnHFCN nanocomposite
• Riboflavin
• Glassy carbon electrode
• Voltammetry

This paper demonstrates the development of an electrochemical sensor based on ZnO-manganese hexacyanoferrate nanocomposite (ZnO/MnHCNF)- modified glassy carbon electrode (GCE) for detecting riboflavin (RF) in 0.1 M PBS (pH 6.4) using voltammetric studies. The GCE was prepared by depositing appropriate amounts of ZnO on the surface of GCE, followed by depositing manganese hexacyanoferrate (MnHCNF) nanoparticles. The morphology and the interface properties of ZnO/MnHCNF composite were examined using UV-visible, FT-IR, X-ray diffraction, BET-surface area, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy with SAED pattern and electrochemical impedance spectroscopy. The modified electrode exhibits excellent sensing performance for detecting RF with a linear range from 0.2 to 3.0 mu M and a detection limit of 0.0101 nM (S/N = 3). Under optimal conditions, the sensor displays excellent stability and satisfactory results in real samples analysis.

• 出版日期2018-10