Pervaporation studies of sodium alginate (SA)/dextrin blend membranes for separation of water and isopropanol mixture

Development of novel grafted hybrid PVA membranes using glycidyltrimethylammonium chloride for pervaporation separation of water–isopropanol mixtures

“…Membrane separation techniques with easy operation and high energy savings are greatly appreciated in a variety of applications such as medical, food, industrial, energy, and environment fields [1][2][3]. Among the membrane separation techniques, pervaporation (PV) is a unique and has been studied widely as means of separation of liquid solutions, particularly for the separation of azeotropic and close boiling liquid mixtures due to its simplicity and energy saving efficiency compared to conventional distillation processes [4][5][6].…”

Novel approach for the development of pervaporation membranes using sodium alginate and chitosan-wrapped multiwalled carbon nanotubes for the dehydration of isopropanol

“…Most of the studies on PV dehydration emphasized on hydrophilic materials due to their strong affinity toward water, preferential absorption of water molecules, which further lead to high selectivity and permeation flux [10][11][12]. Among the hydrophilic polymers, sodium alginate (SA) is the one, which is widely used as membrane material for the separation of water-isopropanol mixtures by PV due to its excellent film forming ability and remarkable separation selectivity toward water and good resistant to organic solvents [13,14]. Unfortunately, it leads to a significant swelling in aqueous solution, resulting to a noticeable decline in the membrane selectivity as well as its mechanical strength due to presence of large number of carboxyl and hydroxyl groups.…”

Thin film composite sodium alginate membranes for dehydration of acetic acid and isobutanol

“…Yeom et al, used glutaraldehyde (GA) crosslinked SA membranes for separation of ethanol water mixtures. SA incorporated with other materials like charcoal particles, silicotungstic acid (STA) combined with PVA have proved to be efficient in separation for various alcohol–water mixtures . Wang have developed a novel method of preparing homogeneous solution of chitosan–alginate polyelectrolyte complex system.…”