| 초록 |
Defected-framework of MIL-100(Fe) was successfully prepared by one-step synthesis of hydrothermal reaction via mixing two organic linkers of trimesic acid (H3BTC) and isophthalic acid (iso-H2BDC) together. The defective framework of MIL-100(Fe) was systematically investigated by analysing porosity, crystallinity, morphology and thermal stability. In order to estimate efficient defect, a series of obtained adsorbents was applied for gaseous toluene adsorption at ambient condition. The results showed that the adsorption capacity of defected-MIL-100(Fe) was higher than that of original MIL-100(Fe) due to increased unsaturated metal sites, forming p-complexation between toluene and open metal sites (Fe-ions). Moreover, the adsorbent with varying 30% mole of iso-H2BDC with H3BTC showed adsorption capacity which increased around 33% in comparison with that of MIL-100(Fe). This defect engineering could be applied for various MOFs to increase adsorption site as open metal site. |
