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Issue 8, 2018
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Ratiometric luminescence sensing based on a mixed Ce/Eu metal–organic framework

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Abstract

Ascorbic acid (AA), which is a well-known antioxidant, reacts with reactive oxygen species (ROS) inside the human body. It is crucial for the proper functioning of living organisms, however, the sensing of AA is still a huge challenge. Herein, a mixed Ce/Eu metal–organic framework [ZJU-136-Ce1−xEux (x = 0.24, 0.36)] is designed and synthesized. Due to the specific redox reaction between the enediol group of AA and Ce4+, the fluorescence intensity of the ligand increases significantly with a simultaneous fluorescence quenching of Eu ions, resulting in a ratiometric fluorescent probe for detecting AA. It is worth noting that the ZJU-136-Ce1−xEux (x = 0.24, 0.36) exhibited good luminescence properties and ratiometric fluorescence for AA determination. Furthermore, the regeneration cycle test shows that the mixed Ce/Eu metal–organic framework can be used as a potential ratiometric sensor for AA determination.

Graphical abstract: Ratiometric luminescence sensing based on a mixed Ce/Eu metal–organic framework

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Publication details

The article was received on 20 Nov 2017, accepted on 23 Jan 2018 and first published on 24 Jan 2018


Article type: Paper
DOI: 10.1039/C7TC05309F
Citation: J. Mater. Chem. C, 2018,6, 2054-2059
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    Ratiometric luminescence sensing based on a mixed Ce/Eu metal–organic framework

    D. Yue, Y. Huang, L. Zhang, K. Jiang, X. Zhang, Y. Cui, Y. Yu and G. Qian, J. Mater. Chem. C, 2018, 6, 2054
    DOI: 10.1039/C7TC05309F

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