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一个Cd-MOF的合成后修饰及其光传感特性

Wenping Hu¹, Yefang Yang¹, Shaowen Qie¹

¹College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia Key Laboratory of Rare Earth Catalysis, Hohhot 010021, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|August 28, 2025

概括

为敏感的米诺环素检测而开发了一种新型的欧合金有机框架 (Eu@Cd-MOF). 这种材料为抗生素传感应用提供了高选择性和可回收性.

科学领域:

材料科学
分析化学
纳米技术

背景情况:

金属有机框架 (MOF) 为传感应用提供可调节的特性.
准确检测像米诺环素 (MC) 这样的抗生素对于公众健康至关重要.
开发有选择性和灵敏的光传感器仍然是一个关键挑战.

研究的目的:

合成和表征一种新的欧合金有机框架 (Eu@Cd-MOF).
研究Eu@Cd-MOF作为米诺环素 (MC) 的光传感器的潜力.
探索开发的传感器的传感机制和实际应用.

主要方法:

使用2- ((6-carboxypyridin-2-yl) terephthalic 酸联体合成Cd-MOF.
通过与Eu3+离子的单反应产生Eu@Cd-MOF的合成后修饰.
使用FT-IR,PXRD,XPS,EDS和光光谱进行表征.
用于MC检测和机制研究的发光测量 (FT-IR,PXRD,UV-vis,理论计算).

主要成果:

在Cd-MOF中成功合成和验证Eu3+离子封装.
Eu@Cd-MOF表现出对米诺环素 (MC) 的光灭反应,其低检测极限 (LOD) 为 6. 94 × 10−8 M.
传感器显示出高选择性,快速响应时间和良好的可回收性.
这种灭机制归因于受体光诱导电子转移 (a-PET) 和紫外线竞争吸收.

结论:

Eu@Cd-MOF是一种高效的光传感器,用于选择性和灵敏地检测米诺环素.
开发的传感器显示出实际应用的前景,包括通过水凝膜进行视觉检查.
这项研究提供了基于MOF的抗生素监测传感机制的见解.

关键词:

抗生素检测光传感器金属有机框架

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