Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 657, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2022.120671
Keywords
Polyamide membrane synthesis; Langmuir Schaefer technique; Desalination; Neutron reflectivity
Categories
Funding
- National Research Foundation of Korea [2021M3H4A3A01043764, 2020K1A3A7A0 9078089]
- Ministry of Trade, Industry and Energy (MOTIE, South Korea) development [P0012770]
- National Research Foundation of Korea [2021M3H4A3A01043764] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
An important challenge in brine treatment is to increase water permeance while maintaining salt rejection in thin-film composite membranes. This study demonstrates the use of a Langmuir-Schaefer technique to fabricate polyamide thin films with nanochannel structures. UV treatment enhances water permeance without compromising salt rejection performance.
An important challenge concerning thin-film composite (TFC) membranes in brine treatment is to increase their water permeance while maintaining salt rejection for desalination performance. Structural control of polyamide (PA) thin films is a key factor in improving the desalination performance. In this study, we employed a Langmuir-Schaefer technique to fabricate PA Langmuir monolayers by interfacial polymerization of m-phenylenediamine and trimesoyl chloride at the liquid-gas interface and deposition on polysulfone supports. This technique allows the fabrication of nanoscale-controlled PA multilayers (2.3 nm per layer) with a nanochanneled structure through repeated deposition. The nanochannels of PA thin-film multilayers were clarified using the neutron reflectivity technique. UV treatment facilitates the maintenance of water-permeable sites in the nanochannels, which increases the water permeance up to 203% without loss of salt rejection performance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available