Graphene-Based Membrane Technology: Reaching Out to the Oil and Gas Industry

Figure 7

Various filtration results using GO membranes: rejection of salts and organic dyes with different numbers of GO layers (a) and effect of salt concentration on the rejection by the 15-layered GO membrane (b). The data at 0 layer are those of the polydopamine-coated membrane. All rejection tests were performed under 50 psi (0.34 MPa) and the rejection tests in (a) were performed with 20 mM NaCl, 10 mM Na2SO4, 7.5 mg/L MB, and 7.5 mg/L R-WT solutions, respectively. Reprinted with permission from [71]. Copyright (2013) American Chemical Society.

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