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Issue 9, 2018, Issue in Progress
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A dual-emission nano-rod MOF equipped with carbon dots for visual detection of doxycycline and sensitive sensing of MnO4

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Abstract

Herein, ethanediamine-modified carbon dots (CDs) were encapsulated into luminescent MOF(Eu), which was designed for a dual-emission hybrid material (CDs@MOF(Eu)) with diverse fluorescence applications. This material exhibited high selectivity and sensitivity towards doxycycline. With an increasing concentration of doxycycline, the blue light emission of CDs could be quenched, whereas the red light emission of MOF(Eu) was enhanced. In view of this result, more convenient “test paper” was used first as a new tool for doxycycline detection, the colour of which turned from blue-purple to red as observed by the naked eyes under 365 nm UV-irradiation. This hybrid material also was a probe for sensing MnO4 with a low limit of detection and good anti-interference performance. We propose that CDs can improve detection sensitivity compared with the original MOF(Eu). The possible sensing mechanism was discussed in detail. Importantly, the feasibility of this composite for sensing doxycycline in a simulated biological system and sensing MnO4 in tap water was investigated.

Graphical abstract: A dual-emission nano-rod MOF equipped with carbon dots for visual detection of doxycycline and sensitive sensing of MnO4−

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Publication details

The article was received on 08 Nov 2017, accepted on 11 Jan 2018 and first published on 25 Jan 2018


Article type: Paper
DOI: 10.1039/C7RA12252G
Citation: RSC Adv., 2018,8, 4766-4772
  • Open access: Creative Commons BY-NC license
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    A dual-emission nano-rod MOF equipped with carbon dots for visual detection of doxycycline and sensitive sensing of MnO4

    X. Fu, R. Lv, J. Su, H. Li, B. Yang, W. Gu and X. Liu, RSC Adv., 2018, 8, 4766
    DOI: 10.1039/C7RA12252G

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