勤益科大機構典藏:Item 987654321/3392
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    题名: Embedded nano-iron polysulfone membrane for dehydration of the ethanol/water mixtures by pervaporation
    作者: Shih-Hsiung Chen
    Rey-May Liou
    Cheng-Lee Lai
    Mu-Ya Hung
    Mei-Hui Tsai
    Shih-Liang Huang
    贡献者: Department of Environmental Engineering and Science, Chia-Nan University of Pharmacy and Science
    Department of chemical and material Engineering, Chin-Yi University of Technology
    关键词: Nano-iron;Polysulfone;Pervaporation;In-situ thermal decomposition
    日期: 2008-12
    上传时间: 2010-03-25 15:05:58 (UTC+8)
    摘要: 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.
    關聯: Desalination
    显示于类别:[化工與材料工程系(所)] 【化工與材料工程系】期刊論文

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