A Concise Thermal Synthesis of Nitrogen Doped Mesoporous Carbon/Ti3C2 Nanocomposite Modified Electrode for Sensitive Detection of Isoquercetin

This article is based on Zn-MOF-8 and uses a simple thermal synthesis method to prepare nitrogen-doped mesoporous carbon spheres (NMC), which is then combined with Ti 3 C 2 to prepare NMC/Ti 3 C 2 nanocomposites. It was characterized by SEM, EDS, XPS, FTIR, and electrochemical methods. The NMC/Ti 3 C 2 nanocomposite modified glassy carbon electrode (GCE) was used for sensitive detection of isoquercetin (IQ), achieving a wide linear range of 0.1–100 µM and a low detection limit of 0.073 µM (S/N = 3). The modified electrode also exhibits good selectivity, excellent anti-interference performance and can be used for actual sample detection. Graphical Nitrogen-doped mesoporous carbon spheres (NMC) were prepared using a simple thermal synthesis method with Zn-MOF-8 as a precursor. Subsequently, NMC was combined with Ti 3 C 2 to prepare NMC/Ti 3 C 2 nanocomposites. The NMC/Ti 3 C 2 nanocomposites were characterized using SEM, EDS, XPS, FTIR, and electrochemical methods. The NMC/Ti 3 C 2 nanocomposites were used to modify glass carbon electrodes (GCE), resulting in NMC/Ti 3 C 2 /GCE, which was employed for the sensitive detection of quercetin (IQ), achieving a wide linear range of 0.1–100 µM and a low detection limit of 0.073 µM (signal-to-noise ratio S/N = 3). The modified electrode also exhibited good selectivity and excellent anti-interference capability, making it suitable for detecting real samples.