Nanocrystalline cellulose reinforced PVDF-HFP membranes for membrane distillation application

Abstract Polyvinylidenefluoride-co-hexafluoropropylene (PVDF-HFP) membranes containing different amounts of nanocrystalline cellulose (NCC) were fabricated by electrospining technique for application in membrane distillation (MD). The effect of incorporating NCC on the mechanical strength, morphology, pore size distribution, and liquid entry pressure (water) of the fibrous was investigated. Incorporation of NCC in PVDF-HFP matrix improved the tensile strength and Young's modulus and narrowed down the pore size distribution of the fabricated membranes. Liquid entry pressure, which is an important parameter to ensure high salt rejection of the membranes in MD, was improved from ~ 19 psi to ~ 27 psi with the addition of 2 wt.% NCC. Fabricated membranes were tested in direct contact membrane distillation (DCMD). MD operation data revealed water flux of 10.2–11.5 Lh − 1  m − 2 with salt rejection of 99% for these NCC-incorporated membranes.

[1]  D. Klemm,et al.  Cellulose: fascinating biopolymer and sustainable raw material. , 2005, Angewandte Chemie.

[2]  P. Lu,et al.  Cellulose nanocrystal-filled poly(acrylic acid) nanocomposite fibrous membranes , 2009, Nanotechnology.

[3]  Kristiina Oksman,et al.  Optimization of the isolation of nanocrystals from microcrystalline cellulose by acid hydrolysis , 2006 .

[4]  B. Ding,et al.  Robust polyacrylonitrile nanofibrous membrane reinforced with jute cellulose nanowhiskers for water purification , 2013 .

[5]  Darrell H. Reneker,et al.  Beaded nanofibers formed during electrospinning , 1999 .

[6]  Anthony G. Fane,et al.  Gas and vapour transport through microporous membranes. I. Knudsen-Poiseuille transition , 1990 .

[7]  Timothy E. Long,et al.  Correlations of solution rheology with electrospun fiber formation of linear and branched polyesters , 2004 .

[8]  Hassan A. Arafat,et al.  Economic evaluation of stand-alone solar powered membrane distillation systems , 2012 .

[9]  Burak Erman,et al.  Electrospinning of polyurethane fibers , 2002 .

[10]  Seeram Ramakrishna,et al.  Production of drinking water from saline water by air-gap membrane distillation using polyvinylidene fluoride nanofiber membrane , 2008 .

[11]  Mohamed Khayet,et al.  A framework for better understanding membrane distillation separation process , 2006 .

[12]  Jiping Xu,et al.  Surface-modified hydrophilic membranes in membrane distillation☆ , 1992 .

[13]  H. Susanto.  Towards practical implementations of membrane distillation , 2011 .

[14]  Wen Bai,et al.  A technique for production of nanocrystalline cellulose with a narrow size distribution , 2009 .

[15]  Hassan A. Arafat,et al.  Effect of dry-out on the fouling of PVDF and PTFE membranes under conditions simulating intermittent seawater membrane distillation (SWMD) , 2013 .

[16]  H. Arafat,et al.  Effect of temperature-dependent microstructure evolution on pore wetting in PTFE membranes under membrane distillation conditions , 2013 .

[17]  Julien Bras,et al.  Cellulosic Bionanocomposites: A Review of Preparation, Properties and Applications , 2010 .

[18]  John Simonsen,et al.  Poly(vinyl alcohol)/cellulose nanocrystal barrier membranes , 2008 .

[19]  Anthony G. Fane,et al.  Effect of pore size distribution and air flux on mass transport in direct contact membrane distillation , 2003 .

[20]  Hassan A. Arafat,et al.  Fabrication and characterization of polyvinylidenefluoride-co-hexafluoropropylene (PVDF-HFP) electrospun membranes for direct contact membrane distillation , 2013 .

[21]  Gurdev Singh,et al.  Preparation and characterization of highly hydrophobic poly(vinylidene fluoride) – Clay nanocomposite nanofiber membranes (PVDF–clay NNMs) for desalination using direct contact membrane distillation , 2012 .

[22]  Hassan A. Arafat,et al.  Development of eco-efficient micro-porous membranes via electrospinning and annealing of poly (lactic acid) , 2013 .

[23]  S. Ramakrishna,et al.  Plasma-induced graft copolymerization of poly(methacrylic acid) on electrospun poly(vinylidene fluoride) nanofiber membrane. , 2007, Langmuir : the ACS journal of surfaces and colloids.

[24]  M. C. García-Payo,et al.  Effects of PVDF-HFP concentration on membrane distillation performance and structural morphology of hollow fiber membranes , 2010 .

[25]  Jun-de Li,et al.  Identification of material and physical features of membrane distillation membranes for high performance desalination , 2010 .

[26]  Raed Hashaikeh,et al.  Nanocrystalline cellulose-reinforced composite mats for lithium-ion batteries: electrochemical and thermomechanical performance , 2012, Journal of Solid State Electrochemistry.

[27]  Raed Hashaikeh,et al.  Nanocrystalline‐cellulose‐reinforced poly(vinylidenefluoride‐co‐hexafluoropropylene) nanocomposite films as a separator for lithium ion batteries , 2012 .