Abstract
In this work, graphene oxide (GO) nanosheets are synthesized and incorporated into the polyamide (PA) selective layer to develop a novel thin-film composite (TFC) membrane for forward osmosis (FO) application. The chemical structure and morphology of the synthesized GO and GO-incorporated TFC membranes are studied by various characterization techniques. Compared with the control TFC membrane, GO-incorporated TFC membranes exhibit higher water flux and reasonable draw solute rejection. The effects of the GO loading on the membrane morphology and FO performance of the GO-incorporated TFC membranes are investigated systematically in terms of various characterizations and intrinsic separation performance. The influence of the draw solution concentration is also studied. The GO-incorporated TFC membranes also possess lower fouling propensity in FO test than that without embedded GO.
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