Characterization of commercial nanofiltration membranes and comparison with self-made polyethersulfone membranes

被引：151
|
作者：
Boussu, K.
Van der Bruggen, B.
Volodin, A.
Van Haesendonck, C.
Delcour, J. A.
Van der Meeren, P.
Vandecasteele, C.
机构：
[1] Katholieke Univ Leuven, Lab Appl Phys Chem & Environm Technol, Dept Chem Engn, B-3001 Louvain, Belgium
[2] Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, Dept Phys & Astron, B-3001 Louvain, Belgium
[3] Katholieke Univ Leuven, Dept Food & Microbial Technol, Food Chem Lab, B-3001 Louvain, Belgium
[4] Univ Ghent, Fac Biosci Engn, Particle & Interfacial Technol Grp, B-9000 Ghent, Belgium
来源：
DESALINATION | 2006年 / 191卷 / 1-3期
关键词：
characterization; nanofiltration; AFM; zeta potential; MWCO;
D O I：
10.1016/j.desal.2005.07.025
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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.
引用
收藏
页码：245 / 253
页数：9
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