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, cilt.428, ss.620-628, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 428
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.memsci.2012.10.046
  • Dergi Adı: JOURNAL OF MEMBRANE SCIENCE
  • Sayfa Sayıları: ss.620-628

Özet

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. (C) 2012 Elsevier B.V. All rights reserved.