Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, Taiwan 106.
Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom.
Environ Res. 2024 Nov 15;261:119710. doi: 10.1016/j.envres.2024.119710. Epub 2024 Aug 3.
Zeolitic Imidazolate (metal organic) Frameworks (ZIFs) and Prussian Blue Analogues (PBAs) are promising materials in electrochemical sensing due to their unique properties. In this study, a composite material comprising NiFe-PBA and ZIF-67 was synthesized and made to form a uniform layer onto a glassy carbon electrode (GCE) to enhance electrochemical performance for furazolidone (FZD) detection. The synthesized NiFe-PBA/ZIF-67 composite exhibited excellent sensitivity, selectivity, and stability towards FZD detection, with a low limit of detection (LOD). The electrochemical behaviour of FZD on the NiFe-PBA/ZIF-67/GCE electrode was investigated, revealing a diffusion-controlled process. Differential pulse voltammetry (DPV) analysis demonstrated the synergetic effect of the PBA/MOF core-shell structure in enhancing FZD electro-reduction. The sensor exhibited exceptional LOD of 0.007 μM. Selectivity studies confirmed the sensor's ability to distinguish FZD from potential interferents. Extensive evaluations demonstrated the sensor's reproducibility, repeatability, and long-term stability, affirming its practical utility. Real sample analysis further validated the sensor's excellent analytical capabilities in diverse matrices.
沸石咪唑酯骨架（ZIFs）和普鲁士蓝类似物（PBAs）由于其独特的性质，在电化学传感中是很有前途的材料。在这项研究中，合成了一种包含 NiFe-PBA 和 ZIF-67 的复合材料，并将其制成均匀的层状结构，覆盖在玻碳电极（GCE）上，以提高电化学性能，用于呋喃唑酮（FZD）的检测。合成的 NiFe-PBA/ZIF-67 复合材料对 FZD 的检测表现出优异的灵敏度、选择性和稳定性，具有较低的检测限（LOD）。研究了 FZD 在 NiFe-PBA/ZIF-67/GCE 电极上的电化学行为，揭示了 PBA/MOF 核壳结构在增强 FZD 电还原过程中的协同效应。传感器表现出 0.007 μM 的超低检测限。选择性研究证实了传感器能够区分 FZD 和潜在的干扰物。广泛的评估证实了传感器的重现性、重复性和长期稳定性，证实了其实际应用价值。实际样品分析进一步验证了传感器在不同基质中具有出色的分析能力。
Anal Methods. 2024-3-28
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