Synthesis, Structural Characterization, Carbon Dioxide and Hydrogen Adsorption of a New 3D MOF Zn(BTC)4

A novel three-dimensional porous MOF Zn (BTC )4 (BTC= benzene-1,3,5-tricarboxylic acid) was synthesized by solvothermal method. This structure was characterized by X-ray single crystal diffraction, SEM and TG. This MOF crystallizes in Monoclinic, P2(1)/n, V=1795.7(2)Å 3 , Z=4, D c =1.449mg/cm 3 , α=90.00°, β=97.2200(10)°, γ=90.00°, a=9.5077(5)Å, b=16.3950(16)Å, c=11.6119(9)Å. The TG analysis shows the material can be stabilized up to 350℃ , then the skeleton collapsed on 350~510℃. The luminescence test shows that the material gives out strong emission at 384nm and 462nm. The hydrogen storage capacity of this MOF is 2.01 wt% at 77K and the pressure of 10bar. The carbon dioxide storage capacity of this MOF is 4.17 mmol/g at 298K and the pressure of 10bar.