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Title: Separation of proteins and toxic heavy metal ions from aqueous solution by CA / APES blend ultafiltration membranes
Authors: Kalaivizhi, R
Raj, S Anitha
Mohan, D
Keywords: Aminated polyethersulfone (APES);Blend membranes;Cellulose acetate (CA);Permeate flux;Phase inversion;Protein rejection;Toxic heavy metal ion;Ultrafilration
Issue Date: Nov-2011
Publisher: NISCAIR-CSIR, India
Abstract: This study presents preparation of cellulose acetate (CA) and aminated polyethersulfone (APES) blend ultrafilrtation membranes by precipitation phase inversion technique in various polymer blend compositions in the presence / absence of PEG 600. Prepared membranes were used for rejection of proteins (bovine serum albumin, egg albumin, pepsin, and trypsin). Toxic heavy metal ions [Cu(II), Zn(II), and Cd(II)] from dilute aqueous solutions were subjected to separation by blend membranes. On increasing APES concentrations, rejection of proteins and metal ions decreases, whereas permeate flux has an increasing trend. Extent of proteins separation was found to be directly proportional to molecular weight of protein. CA / APES blend ultrafilration membranes demonstrated better performance compared to the membranes prepared from pure cellulose acetate.
Page(s): 996-1001
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.70(11) [November 2011]

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