A water-stable metal-organic framework as a luminescent Fe3+ sensor under weak acidic and weak basic conditions

Yali Zhu; Xinhui Zhou; Liang Li; Yujian You; Wei Huang

doi:10.1007/s11426-017-9145-3

A water-stable metal-organic framework as a luminescent Fe³⁺ sensor under weak acidic and weak basic conditions

Yali Zhu, Xinhui Zhou, Liang Li, Yujian You, Wei Huang

科研成果: 期刊稿件 › 文章 › 同行评审

21 引用（Scopus）

摘要

A three-dimensional (3D) metal-organic framework (MOF) ZnL·0.5H₂O·0.75DMF (H₂L=9-(pyridin-4-yl)-9H-carbazole-3,6-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal condition. Crystal structure analysis shows that, in ZnL, each dinuclear Zn₂(COO)₂ unit is doubly-bridged to the other two by the carbazole moieties to form the 1D chains, which are further connected together by pyridine moieties to lead to the 3D framework. ZnL exhibits both high structural stability and good luminescent stability in water with the pH range of 4–10. ZnL displays the luminescent quenching response for Fe³⁺ in water with good linear correlation between the quenching efficiency and the concentration with K_sv of 10800 M⁻¹ in the low concentration range of 0–0.1 mM. Interestingly, it is observed that the sensing performance for Fe³⁺ is stable in the pH range of 4–9, enabling ZnL to detect Fe³⁺ ions in weak acidic and weak basic solutions.

源语言	英语
页（从-至）	1581-1587
页数	7
期刊	Science China Chemistry
卷	60
期	12
DOI	https://doi.org/10.1007/s11426-017-9145-3
出版状态	已出版 - 1 12月 2017
已对外发布	是

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title = "A water-stable metal-organic framework as a luminescent Fe3+ sensor under weak acidic and weak basic conditions",

abstract = "A three-dimensional (3D) metal-organic framework (MOF) ZnL·0.5H2O·0.75DMF (H2L=9-(pyridin-4-yl)-9H-carbazole-3,6-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal condition. Crystal structure analysis shows that, in ZnL, each dinuclear Zn2(COO)2 unit is doubly-bridged to the other two by the carbazole moieties to form the 1D chains, which are further connected together by pyridine moieties to lead to the 3D framework. ZnL exhibits both high structural stability and good luminescent stability in water with the pH range of 4–10. ZnL displays the luminescent quenching response for Fe3+ in water with good linear correlation between the quenching efficiency and the concentration with Ksv of 10800 M−1 in the low concentration range of 0–0.1 mM. Interestingly, it is observed that the sensing performance for Fe3+ is stable in the pH range of 4–9, enabling ZnL to detect Fe3+ ions in weak acidic and weak basic solutions.",

keywords = "9-(pyridin-4-yl)-9H-carbazole-3,6-dicarboxylic acid, Fe sensor, MOFs, pH, water stability",

author = "Yali Zhu and Xinhui Zhou and Liang Li and Yujian You and Wei Huang",

note = "Publisher Copyright: {\textcopyright} 2017, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

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T1 - A water-stable metal-organic framework as a luminescent Fe3+ sensor under weak acidic and weak basic conditions

AU - Zhu, Yali

AU - Zhou, Xinhui

AU - Li, Liang

AU - You, Yujian

AU - Huang, Wei

PY - 2017/12/1

Y1 - 2017/12/1

N2 - A three-dimensional (3D) metal-organic framework (MOF) ZnL·0.5H2O·0.75DMF (H2L=9-(pyridin-4-yl)-9H-carbazole-3,6-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal condition. Crystal structure analysis shows that, in ZnL, each dinuclear Zn2(COO)2 unit is doubly-bridged to the other two by the carbazole moieties to form the 1D chains, which are further connected together by pyridine moieties to lead to the 3D framework. ZnL exhibits both high structural stability and good luminescent stability in water with the pH range of 4–10. ZnL displays the luminescent quenching response for Fe3+ in water with good linear correlation between the quenching efficiency and the concentration with Ksv of 10800 M−1 in the low concentration range of 0–0.1 mM. Interestingly, it is observed that the sensing performance for Fe3+ is stable in the pH range of 4–9, enabling ZnL to detect Fe3+ ions in weak acidic and weak basic solutions.

AB - A three-dimensional (3D) metal-organic framework (MOF) ZnL·0.5H2O·0.75DMF (H2L=9-(pyridin-4-yl)-9H-carbazole-3,6-dicarboxylic acid, DMF=N,N-dimethylformamide) has been synthesized under solvothermal condition. Crystal structure analysis shows that, in ZnL, each dinuclear Zn2(COO)2 unit is doubly-bridged to the other two by the carbazole moieties to form the 1D chains, which are further connected together by pyridine moieties to lead to the 3D framework. ZnL exhibits both high structural stability and good luminescent stability in water with the pH range of 4–10. ZnL displays the luminescent quenching response for Fe3+ in water with good linear correlation between the quenching efficiency and the concentration with Ksv of 10800 M−1 in the low concentration range of 0–0.1 mM. Interestingly, it is observed that the sensing performance for Fe3+ is stable in the pH range of 4–9, enabling ZnL to detect Fe3+ ions in weak acidic and weak basic solutions.

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KW - Fe sensor

KW - MOFs

KW - pH

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A water-stable metal-organic framework as a luminescent Fe3+ sensor under weak acidic and weak basic conditions

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A water-stable metal-organic framework as a luminescent Fe³⁺ sensor under weak acidic and weak basic conditions