https://scholars.lib.ntu.edu.tw/handle/123456789/409766
標題: | High-permeance metal-organic framework-based membrane adsorber for the removal of dye molecules in aqueous phase | 作者: | Ting H. Chi H.-Y. Lam C.H. Chan K.-Y. Kang D.-Y. |
公開日期: | 2017 | 卷: | 4 | 期: | 11 | 起(迄)頁: | 2205-2214 | 來源出版物: | Environmental Science: Nano | 摘要: | This paper reports on a novel membrane adsorber comprising metal-organic frameworks (MOFs) for water treatment. Two types of MOF (ZIF-8 and ZIF-L) were grown within a porous £\-alumina support to form a membrane for the adsorption of a dye molecule, rose bengal, in aqueous phase. The external surface of ZIF-L was shown to exhibit strong affinity for rose bengal. We also observed that small crystals (with a large external surface area) are beneficial to adsorption. The surfactant CTAB was used in the synthesis of ZIF-L-based membrane adsorbers in order to reduce the size of ZIF-L particles and increase the loading of ZIF-L within the membrane. The membrane adsorber synthesized with the highest concentration of CTAB achieved the highest dynamic adsorption capacity. The ZIF-L-based membrane adsorbers exhibited water permeance (approximately 2 ¡Ñ 104 L m-2 bar-1 h-1) far exceeding that of most existing membrane adsorbers. ? 2017 The Royal Society of Chemistry. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409766 | ISSN: | 20518153 | DOI: | 10.1039/c7en00639j |
顯示於: | 化學工程學系 |
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