Electrochemical Determination of Paracetamol Using MXene/single-walled Carbon Nanohorns Composite as Sensor

In this study, single-walled carbon nanohorns (CNHs)-intercalated MXene (Ti3C2) (MXene/CNHs) composite was successfully synthesized, which was used as electrochemical sensor for paracetamol (PAR) detection. The composite of MXene/CNHs exhibits excellent conductivity, large specific surface area and superior electrocatalytic properties. Specifically, the embedding of the CNHs into MXene nanosheets successfully prevents the re-stacking of MXene and provides abundant active sites for catalytic PAR oxidation, which can availably improve the current signal of the electrochemical sensor. Under the optimum conditions, the designed MXene/CNHs electrode can be employed to detect PAR in a broad concentration range of 5.0 nM - 10.0 mu M with a low limit of detection (LOD) of 2.0 nM (S/N = 3). Additionally, the modified electrode exhibits high selectivity, good reproducibility and acceptable stability.

Automated summary

In this study, a MXene/CNHs composite was successfully synthesized and used as an electrochemical sensor for PAR detection, exhibiting excellent conductivity and catalytic properties. The design of the composite effectively increased the current signal and allowed for the wide detection of PAR at a low detection limit.