An Anionic Uranium-Based Metal–Organic Framework with Ultralarge Nanocages for Selective Dye Adsorption

We herein present a rarely seen (3,4)-connected non-interpenetrated anionic uranium-organic framework with tbo topology ( FJI–H-U1 ), which is constructed from two kinds of ultralarge nanocages. More importantly, FJI–H-U1 can selectively adsorb positively charged organic dyes Ethyl Violet, Janus Green B, and Rhodamine B over the anionic organic dye Methyl Orange due to the nature of its anionic framework.