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Functional Composite Materials
Fig. 4 | Functional Composite Materials

Fig. 4

From: 2D nanochannels and huge specific surface area offer unique ways for water remediation and adsorption: assessing the strengths of hexagonal boron nitride in separation technology

Fig. 4

a Photograph of FBN water dispersion. b Photograph of the FBN membrane. The FBN membrane is highlighted with a red dash line to distinguish it from the support membrane. c TEM image of the edge of an FBN flake. d Cross-sectional SEM image of the FBN membrane with a thickness of 200 nm supported on a filter membrane. e Schematic diagram of the permeation of different ions through FBN membranes. f Tested species, the left box shows the ions that can pass through the FBN membrane, whereas the right box illustrates the hydrated ions and molecules that are blocked by the FBN membrane. Reprinted (adapted) with permission from reference [41]. Copyright 2019 American Chemical Society

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