College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, PR China; College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, PR China.
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, PR China.
Food Chem. 2025 Jan 15;463(Pt 3):141387. doi: 10.1016/j.foodchem.2024.141387. Epub 2024 Sep 23.
Heavy metal ions are one of the main sources of water pollution, which has become a major global problem. Given the growing need for heavy metal ion detection, electrochemical sensor stands out for its high sensitivity and efficiency. Metal-organic frameworks (MOFs) have garnered much interest as electrode modifiers for electrochemical detection of heavy metal ions owing to their significant specific surface area, tailored pore size, and catalytic activity. This review summarizes the progress of MOF-based materials, including pristine MOFs and MOF composites, in the electrochemical detection of various heavy metal ions. The synthetic methods of pristine MOFs, the detection mechanisms of heavy metal ions and the modification strategies of MOFs are introduced. Besides, the diverse applications of MOF-based materials in detecting both single and multiple heavy metal ions are presented. Furthermore, we present the current challenges and prospects for MOF-based materials in electrochemical heavy metal ion detection.
重金属离子是水污染的主要来源之一，已成为全球主要问题。鉴于对重金属离子检测的需求不断增长，电化学传感器因其高灵敏度和效率而脱颖而出。金属-有机框架（MOFs）由于其具有大的比表面积、可调节的孔径和催化活性，已成为电化学检测重金属离子的电极修饰材料而备受关注。本综述总结了基于 MOF 的材料（包括原始 MOF 和 MOF 复合材料）在电化学检测各种重金属离子方面的研究进展。介绍了原始 MOF 的合成方法、重金属离子的检测机制以及 MOF 的修饰策略。此外，还介绍了基于 MOF 的材料在检测单种和多种重金属离子方面的多样化应用。最后，提出了基于 MOF 的材料在电化学重金属离子检测中目前面临的挑战和展望。
