Two Highly Water-Stable Imidazole-Based Ln-MOFs for Sensing Fe3+,Cr2O72-/CrO42- in a Water Environment.,Inorganic Chemistry

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Two Highly Water-Stable Imidazole-Based Ln-MOFs for Sensing Fe3+,Cr2O72-/CrO42- in a Water Environment.
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.inorgchem.9b03364
Haihuan Yu ₁ , Mingyue Fan ₂ , Qun Liu ₁ , Zhongmin Su _{2,

3} , Xiao Li _{2,

3} , Qingqing Pan _{2,

3} , Xiaoli Hu _{2,

3}

Affiliation

Developing highly stable materials for harmful ion detection in a water environment is of much importance and challenging. Here, two three-dimensional porous structures (termed as Eu-MOF and Tb-MOF) were successfully constructed by the strategy of anchoring Eu3+/Tb3+ and rigid 1,2,4,5-benzenetetracarboxylic acid (H4BTEC) imidazole units (H3ICA) onto its frameworks. The obtained Eu-MOF and Tb-MOF display high water stability and fluorescence stability up to 30 days. Furthermore, luminescent studies reveal that Eu-MOF and Tb-MOF show rapid, recursive, and simultaneous sensing Fe3+ and Cr2O72-/CrO42- ions in water. In addition, the sensing function possesses remarkable cyclicity and selectivity even with the existence of other analogous ions.

中文翻译：

两种高水稳定性咪唑基Ln-MOF，用于在水环境中感应Fe3 +，Cr2O72- / CrO42-。

开发用于水环境中有害离子检测的高度稳定的材料非常重要且具有挑战性。在这里，通过锚定Eu3 + / Tb3 +和刚性1,2,4,5-苯四甲酸（H4BTEC）咪唑单元（H3ICA）的策略成功构建了两个三维多孔结构（分别称为Eu-MOF和Tb-MOF）进入其框架。所获得的Eu-MOF和Tb-MOF显示高达30天的高水稳定性和荧光稳定性。此外，发光研究表明，Eu-MOF和Tb-MOF显示出快速，递归并同时感测水中的Fe3 +和Cr2O72- / CrO42-离子。此外，即使存在其他类似离子，传感功能也具有出色的循环性和选择性。

更新日期：2020-01-15

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