Figure 3: Characterization of the pristine Cu3(BTC)2 and MOAs.

(a,b) Photographs of the pristine Cu3(BTC)2 and MOA-1 synthesized from HIPE-1; (c) Simulated XRD pattern of Cu3(BTC)2 (black), XRD patterns of MOF (green), MOA-1 (red), MOA-2 (blue) and MOA-3 (pink) synthesized from HIPE-1, HIPE-2 and HIPE-3, respectively; (d–g) SEM images of the pristine Cu3(BTC)2, MOA-1, MOA-2 and MOA-3. Scale bars, 10 μm in images (d–g) and 100 nm in the insets.