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A new Cd based metal–organic framework for quick and convenient detection of trace water in isopropanol and 1,4-dioxane

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Abstract

A new Cd-MOF ([Cd(py)(L)(H2O)2], 1) based on a fluorescent brightener (Na2L, disodium 4,4′-bis(2-sulfonatostyryl)biphenyl) was synthesized by a hydrothermal method. 1 emits weak fluorescence, but it can partially dissociate in a few seconds when encountering water, releasing L2− ligands with a strong luminescence. The luminescent color of the L2− aqueous solution is different from that of L2− in other organic solvents, which makes 1 capable of detecting trace amounts of water in isopropanol and 1,4-dioxane. Compared to the MOFs currently used to detect trace amounts of water in organic solvents, 1 is simpler to produce, cheaper in raw materials and higher in sensitivity (v/v, <0.01%). Furthermore, a test paper has been made from 1 for the rapid detection of trace amounts of water. And the detection process has no special requirements of the surrounding environment, making 1 a rapid sensor for trace amounts of water in organic solvents.

Graphical abstract: A new Cd based metal–organic framework for quick and convenient detection of trace water in isopropanol and 1,4-dioxane

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Publication details

The article was received on 05 Sep 2018, accepted on 20 Oct 2018 and first published on 22 Oct 2018


Article type: Paper
DOI: 10.1039/C8TC04483J
Citation: J. Mater. Chem. C, 2018, Advance Article
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    A new Cd based metal–organic framework for quick and convenient detection of trace water in isopropanol and 1,4-dioxane

    F. Cheng, R. Fu, Y. Wen, Y. Yang, C. Zeng, Y. Zhang, S. Hu and X. Wu, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C8TC04483J

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