Title: Characterization of commercial nanofiltration membranes and comparison with self-made polyethersulfone membranes
Authors: Boussu, Katleen ×
Van der Bruggen, Bart
Volodine, Alexandre
Van Haesendonck, Christian
Delcour, Jan
Van der Meeren, P
Vandecasteele, Carlo #
Issue Date: May-2006
Publisher: Elsevier Scientific Pub. Co.
Series Title: Desalination vol:191 issue:1-3 pages:245-253
Abstract: Characterization of commercial nanofiltration (NF) membranes is necessary to explain and control membrane fouling. Therefore, six different polymeric NF membranes (UTC20, N30F, Desal51HL, Desal5DL, NTR7450 and NFPES10) were characterized. The molecular weight cut-off was determined from PEG measurements, whereas streaming potential measurements enabled quantification of the surface charge characteristics. The roughness of the membranes was measured by atomic force microscopy (AFM) in the non-contact and tapping modes. Hydrophobicity was studied by tapping mode AFM (including phase imaging) and by contact angle measurements. The results indicated that the polyethersulfone membranes (N30F, NTR7450 and NFPES10) have the largest MWCO and the smoothest and most hydrophobic membrane surface. A comparison between the characteristics of commercial and self-made polyethersulfone membranes confirms that they are similar.
ISSN: 0011-9164
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Process Engineering for Sustainable Systems Section
Solid State Physics and Magnetism Section
Centre for Food and Microbial Technology
× corresponding author
# (joint) last author

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