Fast and efficient tracking of micropollutants in aquatic environment by developing novel electrode materials is of great significance. Herein, a polyvinylpyrrolidone (PVP) assisted strategy is applied for synthesis of nitrogen doped Cu MOFs (N-Cu-MOF) for micropollutants electrochemical detection. The designed N-Cu-MOFs possess uniform octahedral shape with large surface area (1184 m2 g-1) and an average size of roughly 450 nm, exhibiting the excellent electroanalytical capability for the detection of multipollutants. In the case of dopamine (DA) and sulfonamides (SA) as typical microcontaminants, the designed N-Cu-MOFs exhibited wide linear ranges of 0.50 nM-1.78 mM and low detection limit (LOD, 0.15 nM, S/N = 3) for the determination of DA, as well as a linear range of 0.01-58.3 μM and LOD (0.003 μM, S/N = 3) for monitoring SA. The improved performance is attributed to the heteroatom introduction and good dispersion stability of N-Cu-MOF with PVP-decorated. The good electroanalytical ability of N-Cu-MOF for detection of DA and SA can provide a guide to efficient and rapid monitor other micropollutants and construct novel electrochemical sensors.

中文翻译：

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N掺杂的Cu-MOF用于高效电化学测定多巴胺和磺胺。

通过开发新型电极材料，快速有效地跟踪水生环境中的微污染物具有重要意义。在这里，聚乙烯吡咯烷酮（PVP）辅助策略适用于氮掺杂的铜MOFs（N-Cu-MOF）的合成，用于微量污染物的电化学检测。设计的N-Cu-MOF具有均匀的八面体形状，具有较大的表面积（1184 m2 g-1），平均尺寸约为450 nm，具有出色的电分析能力，可检测多种污染物。对于多巴胺（DA）和磺酰胺（SA）作为典型的微污染物，设计的N-Cu-MOF表现出0.50 nM-1.78 mM的宽线性范围和低检测限（LOD，0.15 nM，S / N = 3）用于测定DA以及0.01-58.3μM的线性范围和用于监测SA的LOD（0.003μM，S / N = 3）的线性范围。性能的提高归因于杂原子的引入和具有PVP修饰的N-Cu-MOF的良好分散稳定性。N-Cu-MOF对DA和SA的检测具有良好的电分析能力，可为高效，快速监测其他微量污染物和构建新型电化学传感器提供指导。