Green Synthesis of Magnetic Nanocomposite with Iron Oxide Deposited on Cellulose Nanocrystals with Copper (Fe3O4@CNC/Cu): Investigation of Catalytic Activity for the Development of a Venlafaxine…

By Mohammad Ali Khalilzadeh, S. Tajik, H. Beitollahi, Richard Venditti. 2020

143 citations recorded by the source corpus.

A screen-printed electrochemical sensor based on Fe3O4@cellulose nanocrystals/Cu nanocomposite (Fe3O4@CNC/Cu) has been constructed for the sensitive detection of venlafaxine. The magnetic Fe3O4@cellulose nanocrystal/Cu nanocomposite was prepared by a green procedure using a plant extract (Petasites hybridus leaf) as a stabilizing and reducing agent for copper. The formation of Fe3O4@CNC/Cu was validated through X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, ultraviolet–visible spectral analysis, vibrating sample magnetometer, and thermal analysis. Fe3O4@CNC/Cu was next used for modifying a graphite screen-printed electrode, intended for the analysis of venlafaxine concentration. The electrochemical behavior of venlafaxine on the resulting electrode was evaluated through cyclic and differential pulse voltammetry and chronoamperometry. The tests indicated that the sensor has good...

Subfields: Bioengineering, Electrical and Electronic Engineering, Electrochemistry

View Paper: https://www.semanticscholar.org/paper/eed61c786e7822d7a5d78ce4faac754e5d55db7a