Fabrication of high performance and durable forward osmosis membranes using mussel-inspired polydopamine-modified polyethylene supports
- Authors
- Kwon, Soon Jin; Park, Sang-Hee; Shin, Min Gyu; Park, Min Sang; Park, Kiho; Hong, Seungkwan; Park, Hosik; Park, You-In; Lee, Jung-Hyun
- Issue Date
- 15-Aug-2019
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Thin film composite membrane; Polydopamine; Polyethylene; Interfacial polymerization; Forward osmosis
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v.584, pp 89 - 99
- Pages
- 11
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- JOURNAL OF MEMBRANE SCIENCE
- Volume
- 584
- Start Page
- 89
- End Page
- 99
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/63511
- DOI
- 10.1016/j.memsci.2019.04.074
- ISSN
- 0376-7388
1873-3123
- Abstract
- A thin film composite (TFC) forward osmosis (FO) membrane with high performance and superb durability was fabricated on a polydopamine (PDA)-modified polyethylene (DPE) support via an unconventional aromatic solvent-based interfacial polymerization (IP) method. The PDA coating uniformly hydrophilized the hydrophobic pristine polyethylene (PE) support, which enabled the long-term operation stability. The thin (similar to 8 mu m) and highly porous support structure with interconnected pores was preserved after the PDA modification, leading to a remarkably low structural parameter (similar to 168 mu m) of the support. In addition, the use of the toluene-based IP process allowed for the formation of a highly permselective polyamide selective layer on the hydrophilic DPE support, which was challenging with the conventional aliphatic solvent-based IP process. Hence, the prepared DPE-supported TFC (DPE-TFC) membrane exhibited unprecedented high FO performance, i.e., similar to 4.5 times higher FO water flux and similar to 63% lower specific salt flux (in FO mode) compared to the commercial HTI-CTA membrane. Furthermore, the DPE-TFC membrane possessed superior mechanical robustness, which guarantee durable operability and potential application even in mechanically harsh environments. Hence, the PE-supported FO membrane presents a new paradigm in FO membrane technology.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
- College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.