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A Novel Electrochemical Sensor Based on Ti3C2Tx MXene/Mesoporous Hollow Carbon Sphere Hybrid to Detect Bisphenol A
Summary
Researchers developed an electrochemical sensor using Ti3C2Tx MXene nanomaterials to detect bisphenol A (BPA), a chemical contaminant that leaches from certain plastics. The MXene-based sensor demonstrates high sensitivity and selectivity for BPA detection in environmental and food samples. This technology offers a practical tool for monitoring plastic-associated chemical contamination in water and food systems.
Bisphenol A (2,2-bis(4-hydroxyphenyl)propane, BPA), an endocrine-disrupting chemical with recognized adverse effects on human health and ecosystems, urgently requires convenient, sensitive, and accurate detection methods. In this study, a hierarchical heterostructure was fabricated by incorporating Ti3C2Tx MXene and mesoporous hollow carbon spheres (MHCs) to develop a high-performance electrochemical sensor for BPA. The nanocomposite was thoroughly characterized using SEM, TEM, and XRD, and then applied to modify a glassy carbon electrode (GCE). Under optimized conditions including pH and accumulation time, BPA detection was carried out via differential pulse voltammetry (DPV). The sensor exhibited a wide linear detection range from 10 to 200 μM and a low detection limit of 2.6 μM. Moreover, it was successfully applied to environmental water samples, demonstrating high accuracy and practicality for real-world BPA monitoring.