Construction of a terbium-based metal–organic framework for specific detection of MnO4− in aqueous media

Here, a new terbium-based metal–organic framework [Tb(qptca)1/2(H2qptca)1/2(H2O)2]n {H4qptca: [1,1′:4′,1′′:4′′,1′′′:4′′′,1′′′′-quinquephenyl]-2,2′′,2′′′′,5′′-tetracarboxylic acid} (referred to as SLX-3) was successfully achieved and was fully characterized by standard methods such as X-ray single cr...

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Bibliographic Details
Published in:New journal of chemistry 2024-02, Vol.48 (8), p.3588-3593
Main Authors: Guang-Ju Weng, Kang-Min, Cheng, Jia-Qi, Wu, Li, Wei, Jian-Mei, Lu, Li-Xiong, Shao
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Aqueous solutions
Fluorescence
Metal-organic frameworks
Quenching
Recyclability
Single crystals
Terbium
Thermal stability
X ray powder diffraction
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Summary:Here, a new terbium-based metal–organic framework [Tb(qptca)1/2(H2qptca)1/2(H2O)2]n {H4qptca: [1,1′:4′,1′′:4′′,1′′′:4′′′,1′′′′-quinquephenyl]-2,2′′,2′′′′,5′′-tetracarboxylic acid} (referred to as SLX-3) was successfully achieved and was fully characterized by standard methods such as X-ray single crystal diffraction and powder X-ray diffraction. Preliminary results showed that it has excellent aqueous solution and thermal stability, and can accurately and efficiently detect MnO4− in water through a fluorescence quenching effect with excellent anti-interference and good recyclability. Moreover, the fluorescence quenching caused by the energy competition between SLX-3 and the analyte was explained by UV-Vis absorption spectroscopy and TEM-EDS spectroscopy.
ISSN:1144-0546
1369-9261
DOI:10.1039/d3nj05649j