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Issue 9, 2015
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Luminescent zinc metal–organic framework (ZIF-90) for sensing metal ions, anions and small molecules

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Abstract

We synthesize a zinc zeolite-type metal–organic framework, the zeolitic imidazolate framework (ZIF-90), which exhibits an intense blue luminescence excited under visible light. Luminescent studies indicate that ZIF-90 could be an efficient multifunctional fluorescence material for high sensitivity metal ions, anions and organic small molecules, especially for Cd2+, Cu2+, CrO42− and acetone. The luminescence intensity of ZIF-90 increases with the concentration of Cd2+ and decreases proportionally with the concentration of Cu2+, while the same quenched experimental phenomena appear in the sensing of CrO42−. With the increase of the amount of acetone, the luminescence intensity decreases gradually in the emulsions of ZIF-90. The mechanism of the sensing properties is studied in detail as well. This study shows that ZIF-90 could be a useful luminescent sensor for metal ions, anions and organic small molecules.

Graphical abstract: Luminescent zinc metal–organic framework (ZIF-90) for sensing metal ions, anions and small molecules

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The article was received on 19 Mar 2015, accepted on 07 Jun 2015 and first published on 10 Jun 2015


Article type: Paper
DOI: 10.1039/C5PP00107B
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Photochem. Photobiol. Sci., 2015,14, 1644-1650

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    Luminescent zinc metal–organic framework (ZIF-90) for sensing metal ions, anions and small molecules

    C. Liu and B. Yan, Photochem. Photobiol. Sci., 2015, 14, 1644
    DOI: 10.1039/C5PP00107B

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