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... Composite membranes for pervaporation of water/alcohol mixtures were prepared by consecutive alternating adsorption of poly(acrylic acid) (polyanion) an ...
Desalination 148 (2002)
In this study, a series of polycarbonate/polyacrylonitrile (PC/PAN) composite membrane has been successfully fabricated by vapor-induced phase separation and in-situ casting process. The effect of the casting solution... process. The effect of the casting solution concentration on the membrane morphology was investigated. The morphology of the PC/PAN composite membranes was characterized by SEM. The effect of the skin layer thickness on the water flux was measured at a fixed pressure. Compared with th ...
Desalination 233 (2008)
A study on thermal effect on structure and transport properties of a composite lignosulfonated-polyamide/polysulfone membrane
Changes in morphology and transport parameters for a composite lignosulfonate–polyamide/polysulfone membrane associated with temperature effects were studied. Pore size, pore density and porosity dependence... carried out by analyzing SEM micrographs cross-section with the IFME® software, shows a structure with three different zones (similar to NF/RO membranes): a denser top layer on the top of a gradually increases porous sublayer and a clearly differentiated much more open support with wide pores an ...
Desalination 246 (2009)
Change of the performance properties of nanofiltration cellulose acetate membranes by surface adsorption of polyelectrolyte multilayers
... multilayered polyelectrolyte surface structure on the permeability performances (water flux and ion rejection) was studied for a series of composite membranes obtained by varying the total number (up to 35) of the adsorbed polyelectrolyte layer pairs. SEM and permeation measurements showe ...
Desalination 163 (2004)
Desalination of brackish water from Tunisian Sahel using composite polymethylhydrosiloxane–cellulose acetate membranes
... Composite cellulose acetate (CA) based membranes having a hydrophobic top layer made of polymethylhydrosiloxane (PMHS) were prepared with the aim o ...
Desalination 162 (2004)
The characteristics of the composite membranes of three types in reverse osmosis of the concentrated CaSO4 solutions containing sodium carboxymethyl cellulose, an acidi ...
Desalination 153 (2002)
... membranes with strongly enhanced flux compared to initial PVC membranes. Keywords: PVC membrane; Nanoclay; Toluene Á heptane separation; Composite membranes *Corresponding author. Presented at the Third Membrane Science and Technology Conference of Visegrad Countries (PERMEA), Siofok ...
Desalination 241 (2009)
A novel N, O-carboxymethyl amphoteric chitosan/ poly(ethersulfone) composite MF membrane and its charged characteristics
... methylation reactions took place not only on the –OH but also on the –NH2. N, O–carboxymethyl chitosan (CM–CS)/ poly(ethersulfone) (PES) composite microfiltration (MF) membranes were prepared by immersing PES MF membranes into CM–CS solutions and cross-linking with glutaraldehyde.
Desalination 144 (2002)