Embedded nano-iron polysulfone membrane for dehydration of the ethanol/water mixtures by pervaporation

doi:10.1016/j.desal.2007.09.089

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Engineering and Science (including master's program) > Periodical Articles > Item 310902800/21682

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Title:	Embedded nano-iron polysulfone membrane for dehydration of the ethanol/water mixtures by pervaporation
Authors:	Shih-Hsiung Chen Rey-May Liou Cheng-Lee Lai Mu-Ya Hung Mei-Hui Tsai Shih-Liang Huang
Contributors:	環境工程與科學系
Keywords:	Nano-iron Polysulfone Pervaporation In-situ thermal decomposition
Date:	2008-12
Issue Date:	2009-10-05 14:12:57 (UTC+8)
Abstract:	Embedded nano-iron polysulfone membranes were prepared for dehydration of ethanol/water mixtures by pervaporation. It was found that the nano-iron particle can be prepared by in-situ thermal decomposition method in casting solution. The verification of the nano-particle dispersion in membrane was made by TEM measurement. It was found that the embedding nano-particle slightly increased the flux with the ordering polymer chains arrangement in membrane and also increased the separation factor. A remarkable enhancement in the separation factor of over 1000 can also be found in embedded membranes. But the flux of embedded membranes are lower (less than 350 g/m2-h) than the flux of non-embedded polysulfone membranes (500 g/m2-h). The increase in the separation factor of embedding membranes mainly contributed by the ordering/packing of polymer chains was caused by the surface effect of nano particle and limited the permeate diffusion behavior. On the other hand, it was found that the nano-particle embedding in the membrane showed a significant effect on the sorption behavior and presented a significant interaction between water and the embedded membrane. In this study, the high performance dehydration membranes were successfully prepared with nano-particle embedding in polysulfone membranes.
Relation:	Desalination 234(1-3)：p.221-231
Appears in Collections:	[Dept. of Environmental Engineering and Science (including master's program)] Periodical Articles

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