Synthesis and Characterization of Nanoporous Carbon Mg-MOF-C and Carbon Dioxide Adsorption Performance.

A porous carbon material (Mg-MOF-C) was prepared by carbonization in the N2 atmosphere using Mg-MOF-74 as the precursor. Physicochemical properties of Mg-MOF-C materials were well characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FIRT), Thermogravimetric analyzer (TG), transmission electron microscope (TEM), energy dispersive spectrometer (EDS), N2 adsorption/desorption isotherms (BET) and EDS. The adsorption properties of the products were studied Mg-MOF-C has a high specific surface area of up to 1739.29 m2/g, and the pore volume of micropores was 0.98 m3/g. Besides, 95% of the first adsorption is retained after five cycles. The adsorption processes agreed well with the pseudo-second-order kinetic model and Langmuir isotherm model. In this study, Mg-MOF-C, a porous carbon material, was prepared and used to adsorb CO2. The specific surface area of the prepared material significantly increased, and the material's adsorption properties remain unchanged even after prolonged exposure to air. [ABSTRACT FROM AUTHOR]