The production of polysulfone (PS) membrane with silver nanoparticles (AgNP): Physical properties, filtration performances, and biofouling resistances of membranes

Koseoglu-Imer D. Y., KOSE B., ALTINBAS M., Koyuncu İ.

Journal of Membrane Science, vol.428, pp.620-628, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 428
  • Publication Date: 2013
  • Doi Number: 10.1016/j.memsci.2012.10.046
  • Journal Name: Journal of Membrane Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.620-628
  • Keywords: Phase inversion, Polysulfone membrane, Silver nanoparticle (AgNP), Biofouling, ULTRAFILTRATION MEMBRANES, ANTIBACTERIAL ACTIVITY, WATER DISINFECTION, AGENT
  • Istanbul Technical University Affiliated: Yes


The polysulfone (PS) membranes were prepared by adding different amounts of silver nanoparticle-AgNP (0-1. wt%) into the dope solution. The bare PS and AgNP entrapped PS membranes (AgNP-PS composite membrane) were tested for physical properties with water permeability, MWCO (molecular weight cut-off), AFM, contact angle and SEM analyses, filtration performances by using the model protein (BSA) and carbohydrate (dextran) solutions and biofouling resistances by using a real activated sludge. AgNP addition improved the protein and carbohydrate filtration performances of bare PS membrane. The results of biofouling experiments showed the AgNP-PS composite membranes having lower absorptive and pore fouling values than bare PS membrane. The ionic silver loss from membrane during pure water filtration was measured using inductive-coupled plasma spectrometer (ICP) and the results showed the minimum silver loss from the composite membranes. The results of disk diffusion test showed that the composite AgNP-PS membranes decreased the growth of bacterial colonies. However PCR-DGEE technique showed that there were not significant differences in microbial community population density along the bare and composite membranes. © 2012 Elsevier B.V.