Interaction of Congo Red with MOFs Facilitates Specific Detection of Cr(VI) in Water.

IF 4.7 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2025-09-19 DOI:10.1021/acs.inorgchem.5c03177

Xu-Hui Zhao,Rui-Dong Wang,Jun-Fu Man,Zong-Qing Ma,Lei Wang,Wei-Ming Wei,Hua Liu,Wen-Qian Zhang,Lin Du,Qi-Hua Zhao

引用次数: 0

Abstract

In this work, three novel three-dimensional metal-organic frameworks (MOF-1-3) were successfully synthesized, and their chemical stability and intrinsic fluorescence sensing capabilities were confirmed. Property modification of MOF-1-3 was realized via the loading of Congo red (CR), a cationic dye; meanwhile, the CR loading behavior and underlying mechanism of these MOFs were systematically investigated. After CR loading, the fluorescence properties of the resulting CR@MOF-1-3 composites underwent significant changes. Notably, compared with MOF-1-3, CR@MOF-1-3 exhibited selective recognition toward Cr(VI) anions (CrO42- and Cr2O72-) while effectively eliminating interference from Fe(III) ions. This study underscores the potential of CR@MOF-1-3 as multifunctional fluorescent sensing platforms for environmental monitoring and chemical analysis and provides rational guidance for the design of MOF-based fluorescent probes.

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刚果红与mof的相互作用有助于水中Cr（VI）的特异性检测。

本文成功合成了三种新型三维金属有机骨架（MOF-1-3），并证实了它们的化学稳定性和固有荧光传感能力。通过负载阳离子染料刚果红（CR）对MOF-1-3进行了性能改性；同时，系统地研究了这些MOFs的CR加载行为及其作用机理。CR加载后，所得CR@MOF-1-3复合材料的荧光性质发生了显著变化。值得注意的是，与MOF-1-3相比，CR@MOF-1-3对Cr（VI）阴离子（CrO42-和Cr2O72-）有选择性识别，同时有效地消除了Fe（III）离子的干扰。该研究强调了CR@MOF-1-3作为环境监测和化学分析的多功能荧光传感平台的潜力，并为mof荧光探针的设计提供了合理的指导。

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

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.