Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 375, Issue 1-2, Pages 276-283Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2011.03.056
Keywords
Ceramic membrane; Surface modification; Hydrophobic; Membrane fouling; Non-polar organic solvent
Categories
Funding
- National Natural Science Foundation of China [20776067]
- National High Technology Research and Development Program of China [2009AA033005]
- Key Technology R&D Program of JiangSu Province [BE2009677]
Ask authors/readers for more resources
Recently, ceramic membranes have been used increasingly in the treatment of non-polar organic solvents, such as oil purifying. The presence of water in organic solvents leads to membrane fouling, because of the hydrophilic property of ceramic membranes. To improve the filtration performance, surface hydrophobic modification was conducted in this study. ZrO2 membranes with a mean pore size of 0.2 mu m were modified with a self-assembled monolayer of hexadecyltrimethoxysilane (HDTMS). The modified membranes were characterized with FTIR, TGA, SEM, contact angle measurements, and gas permeation tests. The filtration performance of the modified membranes was experimentally studied in the treatment of water-in-oil (W/O) emulsions. All of the characterizations showed that HDTMS was successfully grafted onto the membrane surface and surface modification had little influence on the membrane morphology and pore structure. The filtration results showed that a higher permeate flux and water rejection was obtained with the modified membranes. As a result, surface hydrophobic modification was effective to mitigate membrane fouling. The presented method is important for developing robust membranes with a low level of membrane fouling in the filtration of non-polar organic solvents. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available