Abstract
We demonstrated that a thin-film composite (TFC) membrane with graphene oxide (GO) embedded in its polyamide (PA) layer exhibited high water permeability, anti-biofouling property, and chlorine resistance without loss of salt rejection. The GO fabricated by chemical exfoliation was fractionated for size control, and then the fractionated GO was dispersed in an aqueous solution of m-phenylenediamine (MPD) before interfacial polymerization. The water permeability and anti-biofouling property of the GO-embedded TFC (GO-TFC) membrane were enhanced by approximately 80% and 98% (based on the biovolume), respectively, and high salt rejection was retained even at 48,000. ppm. h chlorination. Compared with the TFC membrane, the enhanced performances of the GO-TFC membrane were attributed to the change of hydrophilicity, surface charge, surface roughness, and thickness of the PA layer through the incorporation of GO. Both the size and the concentration of GO were the key factors in improving the performance of the GO-TFC membrane.
| Original language | English |
|---|---|
| Pages (from-to) | 128-135 |
| Number of pages | 8 |
| Journal | Journal of Membrane Science |
| Volume | 483 |
| DOIs | |
| Publication status | Published - 2015 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Biochemistry
- Materials Science(all)
- Physical and Theoretical Chemistry
- Filtration and Separation
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Graphene oxide-embedded thin-film composite reverse osmosis membrane with high flux, anti-biofouling, and chlorine resistance. / Chae, Hee Ro; Lee, Jaewoo; Lee, Chung Hak; Kim, In Chul; Park, Pyungkyu.
In: Journal of Membrane Science, Vol. 483, 01.06.2015, p. 128-135.Research output: Contribution to journal › Article
TY - JOUR
T1 - Graphene oxide-embedded thin-film composite reverse osmosis membrane with high flux, anti-biofouling, and chlorine resistance
AU - Chae, Hee Ro
AU - Lee, Jaewoo
AU - Lee, Chung Hak
AU - Kim, In Chul
AU - Park, Pyungkyu
PY - 2015/6/1
Y1 - 2015/6/1
N2 - We demonstrated that a thin-film composite (TFC) membrane with graphene oxide (GO) embedded in its polyamide (PA) layer exhibited high water permeability, anti-biofouling property, and chlorine resistance without loss of salt rejection. The GO fabricated by chemical exfoliation was fractionated for size control, and then the fractionated GO was dispersed in an aqueous solution of m-phenylenediamine (MPD) before interfacial polymerization. The water permeability and anti-biofouling property of the GO-embedded TFC (GO-TFC) membrane were enhanced by approximately 80% and 98% (based on the biovolume), respectively, and high salt rejection was retained even at 48,000. ppm. h chlorination. Compared with the TFC membrane, the enhanced performances of the GO-TFC membrane were attributed to the change of hydrophilicity, surface charge, surface roughness, and thickness of the PA layer through the incorporation of GO. Both the size and the concentration of GO were the key factors in improving the performance of the GO-TFC membrane.
AB - We demonstrated that a thin-film composite (TFC) membrane with graphene oxide (GO) embedded in its polyamide (PA) layer exhibited high water permeability, anti-biofouling property, and chlorine resistance without loss of salt rejection. The GO fabricated by chemical exfoliation was fractionated for size control, and then the fractionated GO was dispersed in an aqueous solution of m-phenylenediamine (MPD) before interfacial polymerization. The water permeability and anti-biofouling property of the GO-embedded TFC (GO-TFC) membrane were enhanced by approximately 80% and 98% (based on the biovolume), respectively, and high salt rejection was retained even at 48,000. ppm. h chlorination. Compared with the TFC membrane, the enhanced performances of the GO-TFC membrane were attributed to the change of hydrophilicity, surface charge, surface roughness, and thickness of the PA layer through the incorporation of GO. Both the size and the concentration of GO were the key factors in improving the performance of the GO-TFC membrane.
UR - http://www.scopus.com/inward/record.url?scp=84925012779&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84925012779&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2015.02.045
DO - 10.1016/j.memsci.2015.02.045
M3 - Article
VL - 483
SP - 128
EP - 135
JO - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
ER -