Carbon nanotube blended polyethersulfone membranes for fouling control in water treatment
WATER RESEARCH, cilt.45, sa.1, ss.274-282, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 45 Sayı: 1
- Basım Tarihi: 2011
- Doi Numarası: 10.1016/j.watres.2010.07.060
- Dergi Adı: WATER RESEARCH
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.274-282
- Anahtar Kelimeler: Ultrafiltration, Fouling control, Multi-walled carbon nanotubes, Polyethersulfone, Composite membrane, Hydrophilicity, NATURAL ORGANIC-MATTER, ULTRAFILTRATION MEMBRANE, ASYMMETRIC POLYSULFONE, FABRICATION, SURFACE, PERFORMANCE, CHEMISTRY, FLUX, PVP
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Multi-walled carbon nanotube/polyethersulfone (C/P) blend membranes were synthesized via the phase inversion method. The resultant membranes were then characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and contact angle. The C/P blend membranes appeared to be more hydrophilic, with a higher pure water flux than the polyethersulfone (PES) membranes. It was also found that the amount of multi-walled carbon nanotubes (MWCNTs) in the blend membranes was an important factor affecting the morphology and permeation properties of the membranes. After 24 h of surface water filtration with 7 mgC/L TOC content, the C/P blend membranes displayed a higher flux and slower fouling rate than the PES membranes. Subsequent analyses of the desorbed foulants showed that the amount of foulant on bare PES membranes was 63% higher than the C/P blend membrane for 2% MWCNTs content. Thus, the carbon nanotube content of the C/P membranes was shown to alleviate the membrane fouling caused by natural water. (c) 2010 Published by Elsevier Ltd.