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Issue 36, 2017
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A highly selective and fast-response photoluminescence humidity sensor based on F decorated NH2-MIL-53(Al) nanorods

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Abstract

NH2-MIL-53(Al) nanorods studded with F were successfully synthesized via coordination modulation with HF as a modulator. The investigation of the growth mechanism pointed out that F plays a key role in the formation process. The incorporation of F into the framework of NH2-MIL-53(Al) not only made the crystal morphology tunable but also magnified the fluorescence enhancement performance of NH2-MIL-53(Al) in water vapor, based on which a highly efficient humidity sensor was fabricated. Among different kinds of humidity sensors, the present sensing system stood out due to its fast response rate, good sensitivity and high selectivity with a low detection limit of 0.6 μg mL−1 (S/N = 3) and a wide detection range from 4 to 40 μg mL−1. On the other hand, a majority of the conventional electronic humidity sensors seriously suffered from temperature dependence, while the present sensing system got over this disadvantage. Therefore, the NH2-MIL-53(Al) nanorod layer-based fluorescence sensing system has the potential for application in the real-time monitoring of humidity under ambient conditions.

Graphical abstract: A highly selective and fast-response photoluminescence humidity sensor based on F− decorated NH2-MIL-53(Al) nanorods

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Publication details

The article was received on 21 Apr 2017, accepted on 24 Aug 2017 and first published on 25 Aug 2017


Article type: Paper
DOI: 10.1039/C7TC01742A
Citation: J. Mater. Chem. C, 2017,5, 9465-9471
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    A highly selective and fast-response photoluminescence humidity sensor based on F decorated NH2-MIL-53(Al) nanorods

    T. Lu, H. Song, X. Dong, J. Hu and Y. Lv, J. Mater. Chem. C, 2017, 5, 9465
    DOI: 10.1039/C7TC01742A

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