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一个基于五烯酸功能化的光传感器UiO-66-NH₂用于增强二克隆检测的选择性和灵敏性

Xueqin Sun¹, Yan Fan², Wenyuan Zhang¹

¹Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, Gansu, China.

Mikrochimica acta

|January 15, 2025

概括

一种新的光材料,UiO-66-NH2-PFPA,提供高度敏感和选择性的二 (DCN) 检测. 这一进步有望改善在食品样本中检测DCN的方法.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
环境科学环境科学

背景情况:

双 (DCN) 是一种具有潜在健康影响的杀菌剂.
准确而敏感的DCN检测方法对于食品安全至关重要.
金属有机框架 (MOF) 由于其可调性特性,显示出作为传感材料的前景.

研究的目的:

开发一种用于敏感和选择性二 (DCN) 检测的新型光材料.
为了研究改进的MOF用于DCN传感的性能.
评估材料在现实世界食品样本分析中的适用性.

主要方法:

用五黄酸 (PFPA) 对UiO-66-NH2进行合成后修改 (PSM),以产生UiO-66-NH2-PFPA.
光光谱法用于评估材料对DCN的敏感性和选择性.
密度函数理论 (DFT) 计算和实验研究以阐明火机制.
传感器用于果实样本中DCN检测的应用.

主要成果:

与未经修改的MOF (LOD = 5.225 μM) 相比,用五烯酸功能化的MOF (UiO-66-NH2-PFPA) 对DCN显著提高了敏感性 (LOD = 0.478 μM).
该材料表现出良好的选择性和抗干扰能力.
一个光火机制被确定并由实验和计算数据支持.
在高回收率 (101.1-107.9%) 的水果样本中成功应用表明了实际可行性.

结论:

UiO-66-NH2-PFPA是一种高效的光传感器,用于敏感和选择性的二检测.
开发的材料显示了在食品安全监测中的实际应用的巨大潜力.
该研究为设计用于环境和食品分析的基于MOF的先进传感器提供了基础.

关键词:

双二 (Dicloran) 是一种二的光感应器可以感应光.功能化的功能化.合成后的修改合成后的修改在UiO-66-NH2中.

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