期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 136, 期 22, 页码 -出版社
WILEY
DOI: 10.1002/app.47559
关键词
blends; crosslinking; electrospinning; membranes
资金
- Scientific Promotion Program - Jeju National University
Pure water is becoming less available with increases in world population, so seawater desalination is becoming more important. For efficient seawater desalination, this paper proposes a novel mixed matrix membrane (MMM) based on the deposition of a poly(vinyl alcohol) (PVA) nanofibrous active layer on a 3-triethoxysilylpropylamine-functionalized cellulose acetate substrate. The active layer is fabricated by utilizing a tetraethyl orthosilicate-crosslinked PVA incorporating zinc oxide nanoparticles (ZnO-NPs) and sodium alginate (NaAlg). The overall reverse osmosis performance of the MMMs is enhanced by the infusion of ZnO-NPs and NaAlg in PVA; we find the optimum concentration for the best performance to be ZnO-NPs at 0.1 wt % and NaAlg at 0.01 wt %. In terms of permeation flux, salt rejection, salt passage, stability, long-term rejection, membrane antifouling, reusability, and chlorine resistance, the proposed MMMs are examined using a dead-end reverse osmosis filtration setup. The results show that the active layer achieves an optimal permeation flux of 34.6 L/m(2) h, a natural sea salt rejection of 97%, and a chlorine resistance of 93%, suggesting that the proposed MMMs can be useful for seawater desalination. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47559.
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