High performance hydrophilic pervaporation composite membranes for water desalination
KAUST Grant NumberKUS-C1-018-02
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AbstractA three-layer thin film nanofibrous pervaporation composite (TFNPVC) membrane was prepared by sequential deposition using electrospraying/electrospinning. The poly(vinyl alcohol) (PVA) top barrier layer was first electrosprayed on aluminum foil and its thickness can be easily controlled by adjusting the collecting time. Next a polyacrylonitrile (PAN) nanofibrous scaffold was deposited by electrospinning as a mid-layer support. A nonwoven PET layer is used to complete the composite membrane. The pervaporation desalination performance of TFNPVC membranes was tested using NaCl solutions at 100. Pa and at room temperature. The TFNPVC membranes show excellent desalination performance (high water flux and salt rejection >. 99.5%) for different salt concentrations with virtually no change in performance after 50. h of operation. © 2014 Elsevier B.V.
CitationLiang B, Pan K, Li L, Giannelis EP, Cao B (2014) High performance hydrophilic pervaporation composite membranes for water desalination. Desalination 347: 199–206. Available: http://dx.doi.org/10.1016/j.desal.2014.05.021.
SponsorsThe project is supported by the National Science and Technology Support Program (2011BAE11B01), the Opening Project of State Key Laboratory of Chemical Resource Engineering (CRE-2012-C-206), the National Science Foundation of China (51373014) and the King Abdullah University of Science and Technology (KUS-C1-018-02).