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首页> 外文期刊>Crystal growth & design >Improving Water-Stability and Porosity of Lanthanide Metal-Organic Frameworks by Stepwise Synthesis for Sensing and Removal of Heavy Metal Ions
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Improving Water-Stability and Porosity of Lanthanide Metal-Organic Frameworks by Stepwise Synthesis for Sensing and Removal of Heavy Metal Ions

机译：通过逐步合成提高镧系有机骨架的水稳定性和孔隙率，用于感测和去除重金属离子

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摘要

Employing polynuclear cluster-based nodes can make metal-organic frameworks have higher porosity and good stability. In this work, by using compound [(Me2NH2)Eu(L)(DMA)(H2O)](n) (1) as reactant, polynuclear cluster-based [(Me2NH2)Eu-5(L)(4)(DMA)(4)(H2O)(6)](n) (2) (H4L = 1,3-bis-[3,5-bis(carboxy)phenoxy]propane) can be synthesized successfully. Although two compounds are all three-dimensional microporous anionic frameworks, the water-stability and porosity of compound 2 is higher than that of compound 1. Compound 2 is assembled by two kinds of multinuclear metal units in which one Eu(III) ion center is hexa-coordinated. The luminescence studies exhibited that compound 2 performed a highly selective photoluminescence quenching toward nitrobenzene and Fe(III) ion. So, compound 2 can be possibly developed as a dual functional chemosensor for detecting Fe(III) ion and nitrobenzene. Furthermore, compound 2 also has the potential ability to absorb and remove toxic metal ions from aqueous solution.
机译：采用基于多核簇的节点可以使金属有机框架具有更高的孔隙率和良好的稳定性。在这项工作中，通过使用化合物[（ME2NH2）EU（L）（DMA）（H2O）]（N）（1）作为反应物，基于多核簇的[（ME2NH2）EU-5（L）（4）（DMA ）（4）（H 2 O）（6）]（N）（2）（H4L = 1,3-双 - [3,5-双（羧基）丙烷]可以成功合成。虽然两个化合物是所有三维微孔阴离子框架，但化合物2的水稳定性和孔隙率高于化合物1.化合物2由两种多核金属单元组装，其中一个EU（III）离子中心是Hexa-Coordinated。发光研究表明，化合物2对硝基苯和Fe（III）离子进行了高选择性的光致发光猝灭。因此，化合物2可以是用于检测Fe（III）离子和硝基苯的双官能化学传感器。此外，化合物2还具有从水溶液中吸收和去除有毒金属离子的潜在能力。

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  • 来源
    《Crystal growth & design》 |2018年第8期|共9页
  • 作者

    Lu Sheng-Quan; Liu Yong-Yao; Duan Zhi-Ming; Wang Zhao-Xi; Li Ming-Xing; He Xiang;

  • 作者单位

    Shanghai Univ Coll Sci Dept Chem Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Dept Chem Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Dept Chem Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Dept Chem Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Dept Chem Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Dept Chem Shanghai 200444 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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