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Water flux (normalized to initial water flux) as a function of operating time for GO-embedded polyamide membrane (TFC/GO), house-prepared polyamide membrane (TFC) and a commercially available polyamide membrane (Commercial TFC). Feed solution contained either pure NaCl at 2000 ppm, or 100 ppm BSA + 2000 ppm NaCl. Membrane washing was conducted using water only. Feed temperature, pressure, and pH were not reported. [287] Reprinted with permission of Elsevier B.V.
