| Summary: | Adsorption of N2 on mixed-ligand benzoic acid and 1, 10-phenanthroline ligand of Mn(II) metal-organic framework (MOF)–nanoparticles were demonstrated. The synthesized nanostructures are characterized by techniques such as scanning electron microscopy (SEM), fourier-transform infrared spectroscopy (FT-IR), and UV-visible spectrophotometry (UV-Vis). The pore size distribution and adsorption capacity of the synthesized MOF were investigated experimentally by measuring the N2 adsorption isotherm at 77.3 K, and the resulting data were fitted to Brunauer-Emmett-Teller (BET), de Boer, Dubinin-Radushkevich (DR), Banet-Joyner-Halenda (BJH), Horvath-Kawazoe (HK), and also applied to Density Functional Theory (DFT) models. Excitation of the Mn-MOF nanostructure resulted in an emission at 400 nm. The DSC study reveals that this molecule has a good chemical stability. The FTIR measurement shows a variety of functional groups that are highly coordinated. Moreover, the adsorption properties evaluated by several adsorption models compared with current adsorbent materials show Mn-MOF has superior thermal stability, a high surface area, and pore openings. Because of these findings, Mn-MOF appears to be a viable material for storing gases and energy, whether at low or high pressures.
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