Development and characterization of ceramic nanofiltration membranes

被引：107
|
作者：
Benfer, S [1 ]
Popp, U [1 ]
Richter, H [1 ]
Siewert, C [1 ]
Tomandl, G [1 ]
机构：
[1] Tech Univ Bergakad Freiberg, Inst Keram Werkstoffe, D-09596 Freiberg, Germany
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2001年 / 22-3卷 / 1-3期
关键词：
ceramic membranes; nanofiltration; polymeric sol; sol-gel process; membrane characterization;
D O I：
10.1016/S1383-5866(00)00133-7
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Ceramic ZrO2 and TiO2 nanofiltration membranes were produced by using a polymeric sol gel route. The influence of different parameters like additives and solvents onto the hydrolysis and polycondensation properties of the sols was studied by IR- and NMR-spectroscopy and viscosity measurements. The prepared ceramic membranes were characterized by different methods. Structure and phases were investigated by X-ray diffraction, thickness and qualify by the aid of SEM and FESEM. The membranes exhibit an average pore size in the range of 1-2 nn as determined from N-2-adsorprion-desorption measurements. The filtration properties of the membranes were examined by filtration tests with two colouring agents. A cut-off value of less than 1000 Da was determined. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：231 / 237
页数：7
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