Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/82689
Title: | A 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 layer | Authors: | Lee, Jaewoo Jang, Jun Hee Chae, Hee-Ro Lee, Sang H. Lee, Chung-Hak Park, Pyung-Kyu Won, Young-June Kim, In-Chul |
Keywords: | Mechanical energies Film thickness |
Issue Date: | 2015 | Source: | Lee, 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. | Series/Report no.: | Journal of Materials Chemistry A | Abstract: | In 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. | URI: | https://hdl.handle.net/10356/82689 http://hdl.handle.net/10220/42356 |
ISSN: | 2050-7488 | DOI: | 10.1039/C5TA04042F | Research Centres: | Nanyang Environment and Water Research Institute | Rights: | © 2015 The Royal Society of Chemistry. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | NEWRI Journal Articles |
SCOPUSTM
Citations
5
67
Updated on Mar 22, 2024
Web of ScienceTM
Citations
5
56
Updated on Oct 25, 2023
Page view(s) 50
527
Updated on Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.