https://scholars.lib.ntu.edu.tw/handle/123456789/410389
標題: | Synthesis of mesoporous SiO 2 xerogel/chitosan mixed-matrix membranes for butanol dehydration | 作者: | Lin Y.-F. Wu C.-Y. Liu T.-Y. Lin K.-Y.A. Tung K.-L. Chung T.-W. |
關鍵字: | Butanol/water separation;Mixed-matrix membranes;Pervaporation;SiO 2 xerogel | 公開日期: | 2018 | 卷: | 57 | 起(迄)頁: | 297-303 | 來源出版物: | Journal of Industrial and Engineering Chemistry | 摘要: | Novel mesoporous SiO 2 xerogel/chitosan (CS) mixed-matrix membranes (MMMs) were successfully prepared by incorporating sol¡Vgel synthesized SiO 2 xerogels into glutaraldehyde (GA) cross-linked CS membranes. The effects of the SiO 2 doping amount and the feed temperature on the performance of the separation of butanol and water was also investigated in this study. The 0.25 wt% SiO 2 xerogel/CS MMMs possessed the best pervaporation performance and the largest PSI value of 1102 kg/m 2 h with a permeate flux of 736 g/m 2 h (Permeability of 3.25 ¡Ñ 10 ?5 g m m ?2 h ?1 Pa ?1 ) and a separation factor of 1498 at a feed temperature of 50 ¢XC. This PSI value is not only comparable but also exceeds that of other membranes reported in the literature. The separation factor and the flux of the SiO 2 xerogel/CS MMMs in this study clearly exceed the upper limit of the previously reported MMMs. As a result, the as-prepared novel SiO 2 xerogel/CS MMMs showed an improved performance during the butanol and water separation process, which raises the possibility of future pervaporation applications using this novel SiO 2 xerogel/CS MMMs. ? 2017 The Korean Society of Industrial and Engineering Chemistry |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/410389 | ISSN: | 1226086X | DOI: | 10.1016/j.jiec.2017.08.036 |
顯示於: | 化學工程學系 |
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