Preparation of electrospun SnO2 carbon nanofiber composite for ultra-sensitive detection of APAP and p-Hydroxyacetophenone

Publication date: 15 November 2019Source: Sensors and Actuators B: Chemical, Volume 299Author(s): Weijuan Hu, Zhen Zhang, Li Li, Yaping Ding, Jiangxue AnAbstractThe doped SnO2 carbon nanofiber (SnO2-CNF) composites were prepared by electrospinning technology. Morphology of the composites prepared by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectrometer (EDS), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. We used electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV) to demonstrate the electrochemical performance of SnO2-CNF composites. In addition, we constructed an electrochemical sensor using the composite nanomaterials we prepared to achieve simultaneous detection of Acetaminophen (APAP) and p-Hydroxyacetophenone (p-HAP). The linear range of APAP is 0.50–700 μM, the detection limit is 0.086 μM; the linear range of p-HAP is 0.20–50 μM, and the detection limit is 0.033 μM. It has also been successfully applied to the detection of actual samples and serum environments, and satisfactory recovery rates have also been obtained.

Source: Sensors and Actuators B: Chemical - August 25, 2019 Category: Chemistry Source Type: research