Mineralized polyacrylonitrile-based ultrafiltration membranes with improved water flux and rejection towards dye

Improved Performance of CaCl 2 Incorporated Polyethersulfone Ultrafiltration Membranes

“…In recent times, calcium salts are investigated as a potential inorganic additive for the polymeric membranes resulting in high flux and enhanced rejection [41][42][43][44]. Calcium chloride (CaCl 2 ) blended with polyacrylonitrile resulted in membrane with high permeation and no loss on the protein rejection efficiency [41].…”

“…Polyacrylonitrile and polyvinylidene fluoride membranes mineralized with calcium carbonate (CaCO 3 ) showed increased surface hydrophilicity and water flux as compared to the unmodified PES membranes. These membranes were identified to be suitable for dye and salt desalination [42,43]. CaCO 3 nanoparticles incorporated polyvinylidene fluoride membrane was successfully applied for membrane distillation studies.…”

“…In general, organic polymers are more suitable starting materials for the preparation of industrial grade membranes, especially for effluent treatment [4]. Several polymers such as polyvinylidene fluoride [5][6][7][8], polysulfone [9][10][11], polyacrylonitrile [12,13], polyethersulfone [14][15][16][17] and cellulose acetate [18][19][20] have been reported for the development of microfiltration (MF) and ultrafiltration (UF) membranes for various applications.…”

Development of antibacterial polyacrylonitrile membrane modified with a covalently immobilized lysozyme

“…In recent years, membrane separation has been widely used in water treatment, food, 1 pharmaceutical, and biotechnological industries. In all polymer membranes, 2 polyacrylonitrile (PAN) membrane occupied the main part owing to its good solvent 3 resistance, sufficient chemical stability, excellent mechanical properties, and superior 4 thermal stability.…”

“…Actually, a series of investigations 3-4 and antibacterial agents have 12 been employed to construct bactericidal membranes, including N-halamine 13 compounds, 5-7 silver ions/nanoparticles (AgNPs), 8-10 various polycations, 11-13 and 14 enzymes. With the growing public health 17 awareness of the pathogenic effects, and stain formations caused by microorganisms, 18 there is an increasing need for producing an antibacterial membrane that can not only 1 It can break down bacterial cell walls via catalyzing the hydrolysis of 1, 2 4-beta-linkages between N-acetyl-dglucosamine and N-acetylmuramic acid residues 3 in chitodextrins, which increased the permeability of bacteria and caused bacteria to 4 burst. With the growing public health 17 awareness of the pathogenic effects, and stain formations caused by microorganisms, 18 there is an increasing need for producing an antibacterial membrane that can not only 1 It can break down bacterial cell walls via catalyzing the hydrolysis of 1, 2 4-beta-linkages between N-acetyl-dglucosamine and N-acetylmuramic acid residues 3 in chitodextrins, which increased the permeability of bacteria and caused bacteria to 4 burst.…”