Fabrication of highly permeable thin-film composite forward osmosis membrane using poly-l-lysine as an additive in polysulfone substrate

نویسندگان

چکیده

Forward osmosis (FO) has received considerable interest for water and energy-related applications in recent years. However, FO not been commercialized yet because of a few reasons. The lack high-performance membrane is one the important barriers. To overcome this issue, novel thin-film composite (TFC) was successfully fabricated via interfacial polymerization with poly-L-lysine incorporated polysulfone substrate (PSf). Compared to pristine PSf substrate, incorporation lysine (ranging 1 – 15 wt.%) meaningfully alternates substrates chemical structure, porosity, contact angle, morphology leading an enhancement -TFC membranes performance. results showed that new higher more hydrophilic, smaller pore size after introduction L-lysine. achieved highest flux at 15% concentration maximum 35 L/m2.h (LMH) comparable specific salt (Js/Jw) 0.002 g/L active layer facing feed side (AL-FS) when 1M NaCl applied as draw solution. increased increasing lysine. addition poly-L-Lysine casting solution resulted porous hydrophilic support layer.

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ژورنال

عنوان ژورنال: Vietnam Journal of Science and Technology

سال: 2022

ISSN: ['2525-2518']

DOI: https://doi.org/10.15625/2525-2518/17337