Adsorptive Removal of Dibenzothiophene Using UVM-7 at ZIF-8 as Nano-Adsorbent in Liquid Phase at Room Temperature

In this study, the UVM-7 at ZIF-8 hybrid nanoparticle was synthesized using hydrothermal method, and its application was investigated to remove the sulfur compound of Dibenzothiophene in the liquid phase at R. T. To study the efficiency and DBT removal capacity of the as-prepared nano-adsorbent, various factors such as the amount of adsorbent, time and selectivity toward aromatic compound of naphthalene have been investigated. According to the results, the UVM-7@ZIF-8 showed high selectivity and good recycling ability to eliminate DBT under mild conditions. In addition, removal of DBT has been reported with a maximum absorption of 299.2 mgS/g for UVM-7@ZIF-8. Due to the high adsorption capacity and absence of π-π interactions, it has been suggested that the presence of non-saturated sites around metal centers were responsible for the absorptive desulfurization process. For determining the desulfurization mechanism, we characterized the exhausted samples through FTIR, and XRD measurements were characterized.In addition, the results against fresh samples were compared with each other.