title: Separation of macromolecular proteins and rejection of toxic heavy metal ions by PEI/cSMM blend UF membranes.
abstract: The charged surface modifying macromolecule (cSMM) was blended into the casting solution of poly(ether imide) (PEI) to prepare surface modified ultrafiltration membranes by phase inversion technique. The separation of proteins including bovine serum albumin, egg albumin, pepsin and trypsin was investigated by the fabricated membranes. On increasing cSMM content, solute rejection decreases whereas membrane flux increases. The pore size and surface porosity of the 5 wt% cSMM blend PEI membranes increases to 41.4 Å and 14.8%, respectively. Similarly, the molecular weight cut-off of the membranes ranged from 20 to 45 kDa, depending on the various compositions of the prepared membranes. The toxic heavy metal ions Cu(II), Cr(III), Zn(II) and Pb(II) from aqueous solutions were subjected to rejection by the prepared blended membrane with various concentration of polyethyleneimine (PETIM) as water soluble polymeric ligand. It was found that the rejection behavior of metal ion depends on the PETIM concentration and the stability complexation of metal ion with ligand.
authors.affiliation: PG & Research Department of Chemistry, Polymeric Materials Research Lab, Alagappa Government Arts College, Karaikudi, 630 003, India.
authors.forename: P
authors.initials: P
authors.lastname: Kanagaraj
authors.affiliation: PG & Research Department of Chemistry, Polymeric Materials Research Lab, Alagappa Government Arts College, Karaikudi, 630 003, India. Electronic address: nagimmm@yahoo.com.
authors.forename: A
authors.initials: A
authors.lastname: Nagendran
authors.affiliation: Department of Chemical and Biological Engineering, Industrial Membrane Research Institute, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON, K1N 6N5, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Rana
authors.affiliation: Department of Chemical and Biological Engineering, Industrial Membrane Research Institute, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON, K1N 6N5, Canada.
authors.forename: T
authors.initials: T
authors.lastname: Matsuura
authors.affiliation: PG & Research Department of Chemistry, Polymeric Materials Research Lab, Alagappa Government Arts College, Karaikudi, 630 003, India.
authors.forename: S
authors.initials: S
authors.lastname: Neelakandan
mesh_terms: D000818:Animals; D002417:Cattle; D005249:Fees and Charges; D000075322:Heavy Metal Poisoning; D008567:Membranes, Artificial; D019216:Metals, Heavy / Q000737:chemistry; D011041:Poisoning; D011094:Polyethyleneimine / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D011506:Proteins / Q000737:chemistry / Q000302:isolation & purification*; D012710:Serum Albumin, Bovine / Q000737:chemistry / Q000302:isolation & purification; D012996:Solutions / Q000737:chemistry; D013499:Surface Properties; D014462:Ultrafiltration; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry
chemical_list: D008567:Membranes, Artificial; D019216:Metals, Heavy; D011108:Polymers; D011506:Proteins; D012996:Solutions; D014874:Water Pollutants, Chemical; D014867:Water; D012710:Serum Albumin, Bovine; D011094:Polyethyleneimine
keywords: Proteins separation; Toxic metal ions rejection; Ultrafiltration membrane