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. 2014 Jul 2;4:5528. doi: 10.1038/srep05528

Figure 2. Characterizations of the ion transport through G-O membranes with different features.

Figure 2

(a), Conductivities of the drains after 3 h for considered sources through G-O membranes. Bottom panel shows corresponding cross-section SEM characterizations of as-prepared G-O membranes drop-casted by 1.5, 2.5 and 4 mg/mL. The insets show the as-assembled G-O membranes. (b), Conductivities of the drains after 3 h for considered sources through G-O membranes drop-casted from nanosize and microsize G-O sheets, respectively. The insets show the photographs of corresponding G-O membranes and the schematic drawings for nanocapillaries formation. Bottom panel shows AFM characterizations of as-prepared microsize and nanosize G-O flakes. The insets show the corresponding height profiles of G-O sheets. For each group of experiments, at least three runs were repeated. Excellent reproducibility could be obtained and the variations were within the size of the data ball.