化学
硝基苯
金属有机骨架
荧光
抗坏血酸
猝灭(荧光)
分子
水溶液
发光
热分解
无机化学
硝基
苯
水溶液中的金属离子
吸附
检出限
金属
有机化学
色谱法
量子力学
光电子学
催化作用
烷基
物理
食品科学
作者
Yu Qiao,Chang Q. Sun,Juan Jian,Tianyu Zhou,Xiangxin Xue,Jinghui Shi,Liang Zhao,Guangfu Liao
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2024-01-17
卷期号:63 (4): 2060-2071
被引量:1
标识
DOI:10.1021/acs.inorgchem.3c03838
摘要
The synthesis of two versatile fluorescent metal-organic frameworks (MOFs), [Eu(4-NCP)(1,4-bdc)]n·0.5H2O (1) and [Eu(4-NCP)(4,4'-bpdc)]n·0.75H2O (2) (HNCP = 2-(4-carboxyphenyl)imidazo(4,5-f)-(1,10)phenanthroline, 1,4-H2bdc = benzene-1,4-dicarboxylic acid, 4,4'-H2bpdc = 4,4'-biphenyldicarboxylic acid), was carried out using a hydrothermal method. These MOFs were characterized through various advanced technologies to determine their structural information. The results indicate that both MOFs exhibited 3D network structures with specific topologies. Furthermore, these MOFs demonstrated exceptional thermal stabilities and adsorption capabilities. Additionally, complex 2 was utilized for studying the fluorescence sensing properties of various micronutrients including metal ions, nitro aromatic compounds, and biological small molecules. Notably, complex 2 showed promising potential as a multifunctional sensor for selectively detecting Fe3+, nitrobenzene, and ascorbic acid in aqueous solutions through fluorescence quenching with low limits of detection (LODs ∼ 10-7 M) and high quenching constants (Ksv ∼ 103 M-1). Moreover, the detection mechanism of complex 2 was further investigated by using experimental methods and DFT calculations.
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