dc.contributor.authorLee, Jaewoo
dc.contributor.authorJang, Jun Hee
dc.contributor.authorChae, Hee-Ro
dc.contributor.authorLee, Sang H.
dc.contributor.authorLee, Chung-Hak
dc.contributor.authorPark, Pyung-Kyu
dc.contributor.authorWon, Young-June
dc.contributor.authorKim, In-Chul
dc.date.accessioned2017-05-09T06:52:11Z
dc.date.available2017-05-09T06:52:11Z
dc.date.copyright2015
dc.date.issued2015
dc.identifier.citationLee, J., Jang, J. H., Chae, H. -R., Lee, S. H., Lee, C. -H., Park, P. -K., et al. (2015). A facile route to enhance the water flux of a thin-film composite reverse osmosis membrane: incorporating thickness-controlled graphene oxide into a highly porous support layer. Journal of Materials Chemistry A, 3(44), 22053-22060.en_US
dc.identifier.issn2050-7488en_US
dc.identifier.urihttp://hdl.handle.net/10220/42356
dc.description.abstractIn this study, we demonstrated that a reduction in solely the concentration of the polymer solution for preparation of the support layer effectively enhances the water flux of a thin-film composite (TFC) reverse osmosis (RO) membrane. However, a decrease in the polymer concentration caused the sub-surface structure of the support layer to become too porous, which unavoidably weakened the mechanical strength of the support layer. To overcome the problem, we prepared a highly porous support layer with improved mechanical strength by incorporating graphene oxide (GO) platelets. The thickness of the GO platelets was controlled by adjusting the mechanical energy input per volume of the precursor solution. We confirmed that well-exfoliated GO platelets (mean thickness: about 1.5 nm) are more effective in enhancing the mechanical properties of the support layer. The TFC RO membrane made of the GO composite support layer had almost 1.6 to 4 times higher water flux with comparable salt rejection compared to both the current upper bounds of the RO membranes prepared by modification of the active layer and commercial RO membranes.en_US
dc.format.extent9 p.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesJournal of Materials Chemistry Aen_US
dc.rights© 2015 The Royal Society of Chemistry.en_US
dc.subjectFilm thicknessen_US
dc.subjectMechanical energiesen_US
dc.titleA facile route to enhance the water flux of a thin-film composite reverse osmosis membrane: incorporating thickness-controlled graphene oxide in a highly porous support layeren_US
dc.typeJournal Article
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.identifier.doihttp://dx.doi.org/10.1039/C5TA04042F
dc.identifier.rims197437


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