Fig. 3: Ion sieving performance of AD-rGO membranes under different conditions.
From: Quasi-vertically asymmetric channels of graphene oxide membrane for ultrafast ion sieving
a Water permeance and rejection of AD-rGO membranes for different concentrations of CuSO4 solution. b Water permeance and rejection of AD-rGO membranes prepared with different AD-rGO masses for 50 mg L−1 CuSO4 solution. c Long-term filtration performance of AD-rGO membrane for 50 mg L−1 CuSO4 solution. The filtrate was collected every 250 mL for a total of 16 cycles using a semi-automatic vacuum filtration method. d Stability of the AD-rGO and GO membranes in the aqueous solution ultrasonic treated with 40 kHz for 100 min. The values are mean ± SD (n = 3).
