Interconnection of Electrospun Nanofibers via a Post Co-Solvent Treatment and Its Open Pore Size Effect on Pressure-Retarded Osmosis Performance
- Authors
- Park, Chul Ho; Bae, Harim; Kwak, Sung Jo; Jang, Moon Seok; Lee, Jung-Hyun; Lee, Jonghwi
- Issue Date
- 4월-2016
- Publisher
- POLYMER SOC KOREA
- Keywords
- pressure-retarded osmosis; electrospinning; nanofiber support layer; salt flux; open pore size
- Citation
- MACROMOLECULAR RESEARCH, v.24, no.4, pp.314 - 322
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MACROMOLECULAR RESEARCH
- Volume
- 24
- Number
- 4
- Start Page
- 314
- End Page
- 322
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/89062
- DOI
- 10.1007/s13233-016-4044-2
- ISSN
- 1598-5032
- Abstract
- Design of support layer structures for asymmetric thin film composite membranes has drawn keen attention to improve the power density for salinity gradient power based on pressure-retarded osmosis. This study has interests on electrospun nanofiber-based support layers, and the effects of its open pore sizes are attractively stated. To control the open pore size, a counter charge deposition method was introduced. To retain the open pore size, all the nanofibers were interconnected by a post co-solvent treatment technology. For a thin film composite membrane, an interfacial polymerization was used to fabricate a polyamide active layer on the electrospun nanofiber-based support layers. It was found that although the maximum power density achieved with an open pore size of 2.4 mu m(2) was 0.14 W/m(2), it increased significantly up to 9.5 W/m(2) when the pore size was reduced to 0.65 mu m(2). The cause is the salt flux which increases with increasing the open pore sizes under applied pressures.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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