The Uncommon Channel-Based Ln-MOFs for Highly Selective Fe3+ Detection and Superior Rhodamine B Adsorption
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- 作者：Dr. Shanghua Xing ; Dr. Qiming Bing ; Lifei Song ; Prof. Guanghua Li ; Prof. Jingyao Liu ; Zhan Shi ; Shouhua Feng and Ruren Xu
- 刊名：Chemistry - A European Journal
- 出版年：2016
- 出版时间：November 2, 2016
- 年：2016
- 卷：22
- 期：45
- 页码：16230-16235
- 全文大小：2288K
- ISSN：1521-3765
文摘
Two new isostructural 3D lanthanide–organic frameworks [H2N(Me)2] [Ln3(OH)(bpt)3(H2O)3] (DMF)2⋅(H2O)4 (1-Ln; Ln=Sm and Eu) with a 1D channel (25 Å) have been successfully assembled from the rare trinuclear [Ln3(OH)(COO)9] clusters and biphenyl-3,4′,5-tricarboxylic acid (H3bpt) and exhibit high stability towards water in the pH range 3–10. MOF 1-Eu is a promising luminescent probe for sensing Fe3+ in aqueous solution and is also selective towards rhodamine B (RhB) with a superior adsorption capacity of 735 mg g−1, which is the highest among the reported Ln-MOFs for RhB removal so far. Periodic DFT calculations further confirmed the selective adsorption of rhodamine B over other dyes.