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Nonwoven fabric coated with a tetraphenylethene-based luminescent metal-organic framework for selective and sensitive sensing of nitrobenzene and ammonia

Journal of Materials Chemistry C, ISSN: 2050-7526, Vol: 6, Issue: 45, Page: 12371-12376
2018
  • 28
    Citations
  • 0
    Usage
  • 6
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    28
    • Citation Indexes
      28
  • Captures
    6

Article Description

Luminescent metal-organic frameworks (LMOFs) are promising sensors in suspensions but efficient solid-state sensing devices based on LMOFs are rare. In this work, we synthesized two pillared-layered LMOFs [Zn(TCPPE)(bib)] (1) and [Zn(TCPPE)(bpy)] (2) based on tetraphenylethene (TPE)-based ligand [(HTCPPE = 4-(4-carboxyphenyl)phenyl]ethene; bib = 1,4-di(1H-imidazol-1-yl)benzene; bpy = 4,4′-bipyridine). Complex 1 and activated 1 exhibited high fluorescence quantum yields (Φ) of 46.3% and 35.3%, respectively. Activated 1 coated on nonwoven fabric by the hot-pressing method could maintain its structure and strong emission. The resulting activated 1@nonwoven fabric realized fast, selective and reversible sensing of nitrobenzene vapors with a maximum quenching efficiency of 90%. Interestingly, ammonia triggered an increase in luminescence intensity with a red-shifted emission of activated 1@nonwoven fabric, which is scarcely observed. Coating LMOF particles on a suitable fabric (e.g. nonwoven fabric) could be a feasible approach to create portable solid-state luminescence sensors for practical use.

Bibliographic Details

Chen Lei Tao; Yan Mei Ying; Hui Wang; Gen Ping Zhu; Yan Jiang Song; Xun Gao Liu; Liang Shen; Bin Chen; Zujin Zhao; Ben Zhong Tang

Royal Society of Chemistry (RSC)

Chemistry; Materials Science

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