Fig. 6. PXRD patterns (A) and normalized CO2 uptake at 195 K (B) of non-treated UiO-66 and UiO-66@xPS′′ and after treating them with 1 M H2SO4 and 1 M NaOH at 50 °C for different times. (C) SEM images of UiO-66 (i), UiO-66@PS′′ after treating with 1 M H2SO4 for 24 h (ii), and UiO-66 after treating with 1 M H2SO4 for 10 min (iii); scale bars are 1 μm for (i) and (ii), and 2 μm for (iii).
