Combination of coordinatively unsaturated metal sites and silver nano-particles in a Ni-based metal-organic framework for adsorptive desulfurization

The [email protected] composites were deliberately synthesized with different loading amounts of silver nano-particles in CPO-27-Ni which features unsaturated metal sites and cylindrical one-dimensional channels having a diameter ca. 11 Å constructed by 2,5-dihydroxybenzene-1,4-dicarboxylate Ni2+ simple one-pot solvothermal method. well-characterized used as adsorbents to eliminate the aromatic S-compounds model oil fluid catalytic cracking (FCC) at room temperature. experimental results showed that adsorptive desulfurization followed pseudo-second order reaction kinetics capacity (wherein Ag is 1.23 wt%) was notably enhanced compared under same conditions. Impressively, 35 ppmwS dibenzothiophene (DBT) (or benzothiophene (BT))-containing (20 g) desulfurized 2.01 ± 0.27 4.05 0.26) using 0.2 0.5) g composite, respectively; composite much higher selectivity factor adsorbing DBT naphthalene than CPO-27-Ni. notable enhancement performance thought be due interactions between particles sulfur or ?-system thiophene moiety S-containing compounds consequently promote selective attraction composite. Besides, also satisfactory recyclability.