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. 2022 Jan 25;13:471. doi: 10.1038/s41467-022-28180-4

Fig. 6. Schematic illustration of separation mechanism and water transport through GO membranes and ZnO/rGO membranes.

Fig. 6

Insertion of rigid ZnO nanoparticles between rGO layers increase both the interlayer spacings and in-plane obstructor of rGO layers, leading to higher water permeance and dye molecule selectivity. The green arrows represent the rejection of MB (methyl blue) molecules, the pink arrow represents flow path of water in GO membranes, and the purple arrows represent flow path of water in ZnO/rGO membranes.