A Co-based metal-organic framework for adsorptive desulfurization of dibenzothiophene
Volume Title: 1
1chemistry & chemical engineering research center of Iran (CCERCI)
3Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
4Chemistry & Chemical Engineering Research Center of Iran
A cobalt-based material organic framework (MOF) of Zeolitic Imidazole Framework (ZIF), was synthesized and used in adsorptive desulfurization of dibenzothiophene. The successful synthesis of this microporous MOF was confirmed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption–desorption methods. A uniform hexagonal shape of the particles with an average size of 300 nm was illustrated by SEM images. Moreover, a high surface area of 1499 m2/g was revealed by BET results providing a good potential for adsorption of dibenzothiophene substance during the process. The efficiency of this adsorbent was evaluated for the removal of dibenzothiophene from a model fuel containing 500 ppmw sulfur concentration. According to GC-FID results, the synthsized MOF provided a considerable adsorption capacity of 53 mgS/g for dibenzothiophene. The high efficiency possibly come from a very high surface area and uniform particle size of the synthsized MOF which was proved by different characterization methods.