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The Uncommon Channel-Based Ln-MOFs for Highly Selective Fe 3+ Detection and Superior Rhodamine B Adsorption

Shanghua Xing, Qiming Bing, Lifei Song, Guanghua Li, Jingyao Liu, Zhan Shi, Shouhua Feng, Ruren Xu

Chemistry. 2016 Nov 2;22(45):16230-16235.

PMID: 27645827

Abstract:

Two new isostructural 3D lanthanide-organic frameworks [H2 N(Me)2 ] [Ln3 (OH)(bpt)3 (H2 O)3 ] (DMF)2 ⋅(H2 O)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 (H3 bpt) 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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP677010207 Biphenyl-3,4′,5-tricarboxylic acid Biphenyl-3,4′,5-tricarboxylic acid 677010-20-7 Price
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