Microporous Cd(II) Metal–Organic Framework for CO<sub>2</sub> Catalysis, Luminescent Sensing, and Absorption of Methyl Green
Yao Wang, Guo‐Ping Yang, Peng-Feng Zhang, Lulu Ma, Jiao-Min Wang, Gao‐Peng Li, Yao‐Yu Wang
Abstract
A new porous metal–organic framework (MOF) {[Cd(Hbptc)]·H2O}n (Cdbptc) was assembled by Cd(II) ions and a rigid (1,1′-biphenyl)-2,4,6-tricarboxylic acid (H3bptc) ligand via a solvothermal method. Cdbptc was studied by the physical and chemical analyses methods, exhibiting captivating three-dimensional (3D) microporosity with a 1D channel of 1.7 nm decorated by the uncoordinated hydroxyl groups. It is worth noting that clusters were formed by Cd(II) ions as the Lewis active sites, making it as an excellent reused homogeneous catalyst for the CO2 cycloaddition reaction. In addition, the fluorescence study of Cdbptc indicated Cr3+, Cu2+, Fe3+, [Fe(CN)6]3–, and Cr2O72– ions could be multiply detected with a low detection limit. Besides, the dye adsorption experiment demonstrated that methyl green (MG) dye could be selectively adsorbed by Cdbptc from other dyes, and the adsorption mechanism was testified by X-ray photoelectron spectroscopic data and Fourier transform infrared spectrum data.