Stable luminescent metal-organic frameworks as dual-functional materials to encapsulate ln(3+) ions for white-light emission and to detect nitroaromatic explosives

Inorganic Chemistry
Wei XieYa-Qian Lan

Abstract

A stable porous carbazole-based luminescent metal-organic framework, NENU-522, was successfully constructed. It is extremely stable in air and acidic/basic aqueous solutions, which provides the strategy for luminescent material encapsulation of Ln(3+) ions with tunable luminescence for application in light emission. More importantly, Ln(3+)@NENU-522 can emit white light by encapsulating different molar ratios of Eu(3+) and Tb(3+) ions. Additionally, Tb(3+)@NENU-522 is found to be useful as a fluorescent indicator for the qualitative and quantitative detection of nitroaromatic explosives with different numbers of -NO2 groups, and the concentrations of complete quenching are about 2000, 1000, and 80 ppm for nitrobenzene, 1,3-dinitrobenzene, and 2,4,6-trinitrophenol, respectively. Meanwhile, Tb(3+)@NENU-522 displays high selectivity and recyclability in the detection of nitroaromatic explosives.

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Citations

Oct 16, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Guang-Ning LiuCuncheng Li
Sep 22, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Roberta Anjos de JesusMaria Eliane de Mesquita
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Oct 31, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Jian-Hua QinLu-Fang Ma
Jan 17, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Xue-Jing ZhangMiao Du
Sep 5, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Yanhong LiuJian Wang
Feb 2, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Ning XuGuoan Zhang
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Jul 31, 2019·Chemical Reviews·Pei-Long WangHong-Cai Zhou

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