Extended Data Fig. 8: The size, morphology and processability of COF-310, COF-300 and 2DCOF-TTA-BTA.

a, The DLS number-average size of COF-310, COF-300 and 2DCOF-TTA-BTA in water. b, Photographic image of COF-310, COF-300 and 2DCOF-TTA-BTA in water. c, d, Membranes formed by suction filtration of COF-300 (0.6 µm) (c) and 2DCOF-TTA-BTA (d), respectively. Atomic force microscopy (AFM) image of 2DCOF-TTA-BTA (e) after ultrasonic peeling, and corresponding HRTEM images (f).