Effect of Low Concentrations of Lithium Chloride Additive on Cellulose-Rich Ultrafiltration Membrane Performance
Lopatina, Anastasiia; Esmaeili, Mohammadamin; Anugwom, Ikenna; Mänttäri, Mika; Kallioinen-Mänttäri, Mari (2023-02-05)
Publishers version
Lopatina, Anastasiia
Esmaeili, Mohammadamin
Anugwom, Ikenna
Mänttäri, Mika
Kallioinen-Mänttäri, Mari
05.02.2023
Membranes
13
2
MDPI
School of Engineering Science
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2023020826363
https://urn.fi/URN:NBN:fi-fe2023020826363
Tiivistelmä
Various water treatment processes make extensive use of porous polymeric membranes. A key objective in membrane fabrication is to improve membrane selectivity without sacrificing other properties such as permeability. Herein, LiCl (0–2 wt.%) was utilised as a preforming agent in fabricating biomass-derived cellulosic membranes. The fabricated membranes were characterised by dope solution viscosity, surface and cross-sectional morphology, pure water flux, relative molecular mass cut-off (MWCO, 35 kDa), membrane chemistry, and hydrophilicity. The results demonstrated that at the optimum LiCl concentration (0.4 wt.%), there is an interplay of thermodynamic instability and kinetic effects during membrane formation, wherein the membrane morphology and hydrophilicity can be preferably altered and thus lead to the formation of the membrane with better rejection at no detriment to its permeability.
Lähdeviite
Lopatina A, Esmaeili M, Anugwom I, Mänttäri M, Kallioinen-Mänttäri M. Effect of Low Concentrations of Lithium Chloride Additive on Cellulose-Rich Ultrafiltration Membrane Performance. Membranes. 2023; 13(2):198. https://doi.org/10.3390/membranes13020198
Alkuperäinen verkko-osoite
https://www.mdpi.com/2077-0375/13/2/198Kokoelmat
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