Amino-Functionalized Luminescent Metal-Organic Framework for Turn-On Detection of Al3+ Ions

文献类型： 外文期刊

第一作者： Lin, Chaohui

作者： Lin, Chaohui;Chen, Lixiang;Lai, Xiao-Li;Gong, Lingshan;Ye, Yingxiang;Wang, Ya-Ping;Ye, Yingxiang;Ye, Yingxiang

作者机构：

期刊名称：INORGANIC CHEMISTRY （ 影响因子：4.7； 五年影响因子：4.2 ）

ISSN： 0020-1669

年卷期： 2025 年 64 卷 29 期

页码：

收录情况： SCI

摘要： Aluminum products have a wide range of applications in daily life, but excessive accumulation of aluminum (Al3+) ions causes diseases and affects human health. The accurate detection of Al3+ ions is crucial for preventing their accumulation and mitigating adverse effects on human health. Herein, a luminescent metal-organic framework (MOF), FJU-40-NH2, has been designed for selective aluminum ion (Al3+) detection with a significantly enhanced fluorescence response. This designed FJU-40-NH2 incorporates a pi-conjugated aromatic system as luminescent units and abundant free amino groups as potential binding sites, endowing it with an exceptional ability to selectively sense Al3+ ions. This host-guest interaction results in a significant fluorescence enhancement, making the FJU-40-NH2 an ideal "turn-on" sensor for Al3+ ions with high sensitivity, selectivity, and stability. This substantial fluorescence enhancement is due to the efficient electron transfer after the interaction between Al3+ ions and the amino groups of FJU-40-NH2. More importantly, this "turn-on" fluorescent sensor has been successfully utilized for the analysis of Al3+ ion content in real food samples, yielding recoveries ranging from 92.2 to 105.0%, confirming its potential applications in practical environmental and food safety monitoring.

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