Figure 7. (a)The column breakthrough curves for SO2(2000 ppm)/CO2/N2separation with IL/MIL-0.7 at 298 K and 1 bar; (b) SO2/CO2 breakthrough selectivity ((1), (3): 2000 ppm/15/84.8, v/v/v, SO2/CO2/N2; (2): 5000 ppm/10/89.5, v/v/v, SO2/CO2/N2).