Anionic metal–organic framework for high-efficiency pollutant removal and selective sensing of Fe(iii) ions

Abstract

An anionic metal–organic framework, (DMA)₂[Y₉(μ₃-OH)₈(μ₂-OH)₃BTB₆]_n·(solv)_x (DMA = dimethylamine cation and BTB = 1,3,5-benzene(tris)benzoate), (gea-MOF-1), is a novel rare earth (RE) nonanuclear MOF with an unusual gea topology. It could be used as an adsorbent material for efficiently removing the cationic dye MB⁺. This MOF can not only emit strong fluroescence in MeOH suspension, but also serves as a fluorescent probe for selectively detecting Fe³⁺ among other metal ions through luminescence emission quenching.