Indexed by:Journal Article
Date of Publication:2017-06-07
Journal:CHEMISTRY-A EUROPEAN JOURNAL
Included Journals:PubMed、EI、SCIE
Volume:23
Issue:32
Page Number:7657-7662
ISSN:0947-6539
Key Words:crystal structure; luminescence; metal-organic framework; quenching; uranyl ions
Abstract:A stable 3D Tb-III-based metal-organic framework [Tb(BPDC)(2)]center dot(CH3)(2)NH2 (DUT-101) was synthesized, and it is the first efficient dual-channel luminescence sensor for aqueous UO22+ ions. DUT-101 contains an anionic three-dimensional framework and protonated dimethylamine molecules embedded within the channels. The intense green emission of DUT-101 could be highly selectively and sensitively quenched by UO22+ ions even in the presence of other competing metal ions. A possible sensing mechanism was proposed based on both suppression of luminescence resonance energy transfer and enhancement of intermolecular electron transfer. Furthermore, visual green fluorescent test papers based on DUT-101 were fabricated and could be used to discriminate UO22+ ions among various metal ions.
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Gender:Male
Alma Mater:Jilin University
Degree:Doctoral Degree
School/Department:School of Chemistry Engineering
Discipline:Organic Chemistry. Applied Chemistry. Physical Chemistry (including Chemical Physics)
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