A fluorescent Eu(III) MOF for highly selective and sensitive sensing of picric acid

Qianqian Chen; Jiahui Cheng; Jin Wang; Liang Li; Zhipeng Liu; Xinhui Zhou; Yujian You; Wei Huang

doi:10.1007/s11426-018-9367-y

A fluorescent Eu(III) MOF for highly selective and sensitive sensing of picric acid

Qianqian Chen
, Jiahui Cheng
, Jin Wang
, Liang Li
, Zhipeng Liu
, Xinhui Zhou
, Yujian You
, Wei Huang

Institute of Flexible Electronics

Nanjing University of Posts and Telecommunications
Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

A metal-organic framework [Eu ₃ L ₃ (CH ₃ COO) ₂ (H ₂ O) ₂ (μ ₃ -OH)]•3DMF, (EuL, H ₂ L=9H-carbazole-2,7-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal conditions and structurally characterized. In EuL, Eu ₆ O ₈ clusters are four-bridged by carboxylates to form parallel-aligned Eu–O–C chains, which are further linked by the carbazole moieties of L ²⁻ ligands to form the three-dimensional framework with rhombic channels. The EuL material with characteristic emission of Eu ³⁺ ion exhibits significant luminescence quenching response for picric acid (PA) and the linear Stern-Volmer plot was observed in the concentration range of 0.05–0.15 mM with K _sv of 98074 M ⁻¹ . As far as we know, this K _sv is among the highest values for COFs and MOFs in detection of PA. The excellent anti-interference ability and repeatability were also verified by experiments. Lastly, we investigated the luminescence quenching mechanism in the EuL sensing system.

Original language	English
Pages (from-to)	205-211
Number of pages	7
Journal	Science China Chemistry
Volume	62
Issue number	2
DOIs	https://doi.org/10.1007/s11426-018-9367-y
State	Published - 1 Feb 2019

Keywords

europium
metal-organic frameworks
picric acid
sensor

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@article{17125e4ab8d24f5996187128ee00aad9,

title = "A fluorescent Eu(III) MOF for highly selective and sensitive sensing of picric acid",

abstract = " A metal-organic framework [Eu 3 L 3 (CH 3 COO) 2 (H 2 O) 2 (μ 3 -OH)]•3DMF, (EuL, H 2 L=9H-carbazole-2,7-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal conditions and structurally characterized. In EuL, Eu 6 O 8 clusters are four-bridged by carboxylates to form parallel-aligned Eu–O–C chains, which are further linked by the carbazole moieties of L 2− ligands to form the three-dimensional framework with rhombic channels. The EuL material with characteristic emission of Eu 3+ ion exhibits significant luminescence quenching response for picric acid (PA) and the linear Stern-Volmer plot was observed in the concentration range of 0.05–0.15 mM with K sv of 98074 M −1 . As far as we know, this K sv is among the highest values for COFs and MOFs in detection of PA. The excellent anti-interference ability and repeatability were also verified by experiments. Lastly, we investigated the luminescence quenching mechanism in the EuL sensing system.",

keywords = "europium, metal-organic frameworks, picric acid, sensor",

author = "Qianqian Chen and Jiahui Cheng and Jin Wang and Liang Li and Zhipeng Liu and Xinhui Zhou and Yujian You and Wei Huang",

note = "Publisher Copyright: {\textcopyright} 2018, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2019",

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doi = "10.1007/s11426-018-9367-y",

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TY - JOUR

T1 - A fluorescent Eu(III) MOF for highly selective and sensitive sensing of picric acid

AU - Chen, Qianqian

AU - Cheng, Jiahui

AU - Wang, Jin

AU - Li, Liang

AU - Liu, Zhipeng

AU - Zhou, Xinhui

AU - You, Yujian

AU - Huang, Wei

PY - 2019/2/1

Y1 - 2019/2/1

N2 - A metal-organic framework [Eu 3 L 3 (CH 3 COO) 2 (H 2 O) 2 (μ 3 -OH)]•3DMF, (EuL, H 2 L=9H-carbazole-2,7-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal conditions and structurally characterized. In EuL, Eu 6 O 8 clusters are four-bridged by carboxylates to form parallel-aligned Eu–O–C chains, which are further linked by the carbazole moieties of L 2− ligands to form the three-dimensional framework with rhombic channels. The EuL material with characteristic emission of Eu 3+ ion exhibits significant luminescence quenching response for picric acid (PA) and the linear Stern-Volmer plot was observed in the concentration range of 0.05–0.15 mM with K sv of 98074 M −1 . As far as we know, this K sv is among the highest values for COFs and MOFs in detection of PA. The excellent anti-interference ability and repeatability were also verified by experiments. Lastly, we investigated the luminescence quenching mechanism in the EuL sensing system.

AB - A metal-organic framework [Eu 3 L 3 (CH 3 COO) 2 (H 2 O) 2 (μ 3 -OH)]•3DMF, (EuL, H 2 L=9H-carbazole-2,7-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal conditions and structurally characterized. In EuL, Eu 6 O 8 clusters are four-bridged by carboxylates to form parallel-aligned Eu–O–C chains, which are further linked by the carbazole moieties of L 2− ligands to form the three-dimensional framework with rhombic channels. The EuL material with characteristic emission of Eu 3+ ion exhibits significant luminescence quenching response for picric acid (PA) and the linear Stern-Volmer plot was observed in the concentration range of 0.05–0.15 mM with K sv of 98074 M −1 . As far as we know, this K sv is among the highest values for COFs and MOFs in detection of PA. The excellent anti-interference ability and repeatability were also verified by experiments. Lastly, we investigated the luminescence quenching mechanism in the EuL sensing system.

KW - europium

KW - metal-organic frameworks

KW - picric acid

KW - sensor

UR - https://www.scopus.com/pages/publications/85059299737

U2 - 10.1007/s11426-018-9367-y

DO - 10.1007/s11426-018-9367-y

M3 - 文章

AN - SCOPUS:85059299737

SN - 1674-7291

VL - 62

SP - 205

EP - 211

JO - Science China Chemistry

JF - Science China Chemistry

IS - 2

ER -

A fluorescent Eu(III) MOF for highly selective and sensitive sensing of picric acid

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