An Anionic Indium–Organic Framework with Spirobifluorene-Based Ligand for Selective Adsorption of Organic Dyes,Inorganic Chemistry

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An Anionic Indium–Organic Framework with Spirobifluorene-Based Ligand for Selective Adsorption of Organic Dyes
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-01-20 , DOI: 10.1021/acs.inorgchem.0c02962
Xinli Shi ₁ , Yucong Zu ₁ , Shuangshuang Jiang ₁ , Fuxing Sun ₁

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Ionic metal–organic frameworks (MOFs) with an ionic skeleton and unique porous structures could selectively adsorb charged dyes with specific dimensions. However, the ion-exchange-based and size-exclusion-based process as a chromatography method needs to be further explored. In this study, a new microporous anionic MOF, JUC-210, was synthesized using a spirobifluorene-based ligand and trivalent metal indium. JUC-210 has a two-fold interpenetrated pts framework with a large void space, possessing suitable pore sizes and an anionic skeleton for efficient separation of certain organic dyes. Different types of dyes were used to observe the selective adsorption ability of the as-synthesized MOF. JUC-210 displayed high selective adsorption toward the cationic dye methylene blue with positive charges based on ion exchange and size exclusion. Moreover, the effect of solvent on the selective adsorption behaviors of JUC-210 was investigated. The exploration of novel MOF materials would provide potential efficient adsorbents for separation of organic dyes.

中文翻译：

具有螺二芴基配体的阴离子铟有机骨架对有机染料的选择性吸附

具有离子骨架和独特多孔结构的离子金属有机骨架（MOF）可以选择性地吸附特定尺寸的带电染料。然而，作为色谱方法的基于离子交换和基于尺寸排阻的方法需要进一步探索。在这项研究中，使用基于螺二芴的配体和三价金属铟合成了一种新的微孔阴离子MOF JUC-210。JUC-210具有两点互穿点具有大空隙空间的骨架，具有合适的孔径和用于有效分离某些有机染料的阴离子骨架。使用不同类型的染料来观察合成的MOF的选择性吸附能力。基于离子交换和尺寸排阻，JUC-210对带有正电荷的阳离子染料亚甲基蓝显示出高选择性吸附。此外，研究了溶剂对JUC-210选择性吸附行为的影响。新型MOF材料的探索将为分离有机染料提供潜在的高效吸附剂。

更新日期：2021-02-01

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