Citation: Jun LUO, Baoshu LIU, Yunchang ZHANG, Bingkai WANG, Beibei GUO, Lan SHE, Tianheng CHEN. Europium(Ⅲ) metal-organic framework as a fluorescent probe for selectively and sensitively sensing Pb²⁺ in aqueous solution[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(12): 2438-2444. doi: 10.11862/CJIC.20240240 shu

Europium(Ⅲ) metal-organic framework as a fluorescent probe for selectively and sensitively sensing Pb²⁺ in aqueous solution

School of Pharmacy, Naval Medical University, Shanghai 200433, China

Corresponding author: Baoshu LIU, liubaoshu@126.com Bingkai WANG, timbingkai@163.com
Received Date: 27 June 2024
Revised Date: 10 September 2024

Figures(5)

A novel europium metal-organic framework (Eu-MOF) with formula (H₃O)₆[Eu(BHC)(H₂O)]₂·H₂O (1) has been synthesized successfully via the hydrothermal method by using a monoaromatic polycarboxylic acid ligand benzenehexacarboxylic acid (H₆BHC) reacting with Eu(NO₃)₃·6H₂O. Singlecrystal X-ray diffraction analysis reveals that in 1 the adjacent two Eu(Ⅲ) cations are bridged by the BHC^6- ligands to form the Eu dinuclear unit as a node, and then the Eu dinuclear nodes join each other via the BHC^6- as bridges plus the hydrogen bond interactions along a-, b- and c-axis to form a unique 3D network structure. Photoluminescence measurement indicates that 1 possesses the following advantages as the fluorescent probe: 1 displayed a very low limit of detection (LOD) for Pb²⁺ (0.42 μmol·L^-1) in an aqueous system, and 1 demonstrated higher selectivity.
- europium,
- benzenehexacarboxylic acid,
- metal-organic framework,
- fluorescent probe,
- detection,
- lead cation
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Europium(Ⅲ) metal-organic framework as a fluorescent probe for selectively and sensitively sensing Pb2+ in aqueous solution

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通讯作者: 陈斌, bchen63@163.com

Europium(Ⅲ) metal-organic framework as a fluorescent probe for selectively and sensitively sensing Pb²⁺ in aqueous solution