Photoluminescent europium metal-organic framework (Eu-MOF) based on nicotinic acid n-oxide ligand for selective sensing of aniline

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-09-03 DOI:10.1016/j.jssc.2025.125612

Li-Juan Chen , Ming-Xing Yang , Tao Zhang , Xiao-Feng Zhang , Zhong-Shui Li

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Abstract

A novel europium-based metal-organic framework (compound 1) has been successfully synthesized by assembling EuCl₃·6H₂O and nicotinic acid N-oxide (HNAO) under solvothermal conditions. Compound 1 features a distorted Eu₂(NAO)₄ paddlewheel unit within a two-dimensional layered structure with sql topology. As a highly efficient fluorescent sensor for detecting aniline, compound 1 exhibits excellent selectivity among common organic solvents, achieving a low limit of detection (LOD) of 0.043 μM. Additionally, compound 1 demonstrates outstanding cyclic stability, maintaining high quenching efficiency even after five cycles. The sensor also shows strong resistance to interference from various common organic solvents, highlighting its potential applicability for real-world analysis. This study provides a promising MOF-based fluorescent sensor for aniline detection.

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基于烟酸n-氧化物配体的光致发光铕金属有机骨架（Eu-MOF）对苯胺的选择性传感

以EuCl3·6H2O和烟酸n -氧化物（HNAO）为原料，在溶剂热条件下合成了一种新型铕基金属有机骨架（化合物1）。化合物1在sql拓扑的二维分层结构中具有扭曲的Eu2(NAO)4桨轮单元。化合物1作为一种高效的苯胺荧光传感器，在常见有机溶剂中具有良好的选择性，低检出限（LOD）为0.043 μM。此外，化合物1表现出优异的循环稳定性，即使在5次循环后仍保持较高的淬火效率。该传感器还显示出对各种常见有机溶剂干扰的强大抵抗能力，突出了其在现实世界分析中的潜在适用性。本研究提供了一种基于mof的苯胺检测荧光传感器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.