Fig. 3: Structure and morphology characterizations.
From: Photo-tailored heterocrystalline covalent organic framework membranes for organics separation
a Top-view SEM images of COMs deposited on track-etched substrate membranes. The intercrystalline defects are marked by the white circle. Scale bar = 500 nm. b TEM images of the COMs. Insets are high-magnification images where the high-crystalline regions show lattice diffraction patterns. Scale bar = 10 nm. c Young’s moduli of COMs tested using the peak force quantitative nano-mechanical property mapping method. Scale bar = 200 nm. d, e XRD patterns (d) and N2 adsorption isotherms (e) of DCOM (blue), DPCOMs (red), and PCOM (yellow). The PCOM here is fabricated under 9.0-mW cm−2 irradiation.
