Fig. 5: SEM images of SDC membrane samples.

a SDC-1 surface, b SDC-1 cross-section, c SDC-3 surface, d SDC-3 cross-section, e SDC-4 surface, and f SDC-4 cross-section.

a SDC-1 surface, b SDC-1 cross-section, c SDC-3 surface, d SDC-3 cross-section, e SDC-4 surface, and f SDC-4 cross-section.