Kwon, Soon-Bum Jeong, Seongpil Hong, Seungkwan Lee, Seockheon 2024-01-19T08:01:20Z 2024-01-19T08:01:20Z 2023-11-30 2024-01 0011-9164 https://pubs.kist.re.kr/handle/201004/112974 The internal concentration polymerization (ICP) phenomenon may hinder the flux of forward osmosis (FO) membranes. The mitigation of ICP can be achieved by employing a porous support layer structure. Nevertheless, conventional interfacial polymerization (IP) methods encounter challenges in establishing a dense selective layer upon a highly porous support layer. In this study, the support-free assembled molecular layer-by-layer (SF-mLbL) was suggested to manufacture the thin-film composite (TFC) membrane by combining the separately fabricated polyamide (PA) selective layer with a tunable thickness and the highly porous support layer. The SF-mLbL (8 wt %) membrane had a higher water flux and selectivity (43.52 +/- 0.89 LMH/0.15 +/- 0.01 g L-1) than those (10.34 +/- 0.48 LMH/0.75 +/- 0.02 g L-1 and 7.41 +/- 0.18 LMH/0.81 +/- 0.01 g L-1) of IP-PA and commercial cellulose triacetate membranes as 0.5 M NaCl draw solution in FO mode. Consequently, the SF-mLbL membranes exhibited significant improvement in the FO process with well-balanced permselectivity. English Elsevier BV Support-free assembled molecular layer by layer - HPAN forward osmosis membranes Article 10.1016/j.desal.2023.117067 1 Desalination, v.570 Desalination 570 N scie scopus 001102476300001 2-s2.0-85174734330 Engineering, Chemical Water Resources Engineering Water Resources Article THIN-FILM COMPOSITE INTERNAL CONCENTRATION POLARIZATION PRESSURE RETARDED OSMOSIS STRUCTURAL PARAMETER FLUX BEHAVIOR FO MEMBRANE WATER FLUX PERFORMANCE POLYAMIDE NANOFIBERS Forward osmosis Membrane fabrication Layer -by -layer Molecular layer -by -layer Combining layers