高等学校化学学报Issue(7)：1584-1589,6.DOI:10.7503/cjcu20140076
金属有机骨架材料/聚酰亚胺混合基质膜的制备及气体分离性能
Preparation and Gas Separation Properties of Metal-organic Frameworks/Polyimide Mixed Matrix Membranes
摘要
Abstract
Three metal-organic frameworks(MOFs) with different structure, particle size and gas adsorption properties were synthesized: micron-scale Cu3 (BTC) 2 , sub-micron ZIF-8 and S-Cu3 ( BTC) 2 . Nitrogen ad-sorption-desorption isotherms of MOFs showed that ZIF-8 and Cu3(BTC) 2 possessed quite large BET surfaces (1653 and 1439 m2 / g), and BET surface of S-Cu3(BTC) 2 was 171. 4 m2 / g. MOFs were directly introduced into polyimide to fabricate mixed matrix membranes(MMMs). It was proved by XRD and FTIR-ATR charac-terizations that MOFs had no structural or chemical degradation in MMMs. Gas permeation test result indicated that gas separation properties of MMMs were enhanced as MOFs were added. Comparing with pure polyimide membrane, the adding of ZIF-8 or Cu3(BTC) 2 brought gas permeability increase about 3 times, gas permea-bility of MMMs with S-Cu3 ( BTC) 2 increased 175% . Meanwhile gas selectivies for O2 / N2 and CO2 / CH4 decreased slightly.关键词
金属有机骨架材料/聚酰亚胺/混合基质膜/气体分离Key words
Metal-organic framework/Polyimide/Mixed matrix membrane/Gas separation分类
化学化工引用本文复制引用
段翠佳,曹义鸣,介兴明,王丽娜,袁权..金属有机骨架材料/聚酰亚胺混合基质膜的制备及气体分离性能[J].高等学校化学学报,2014,(7):1584-1589,6.基金项目
国家“八六三”计划项目(批准号:2012AA03A611)资助. Supported by the National High Technology Research and Development Program of China(No.2012AA03A611) （批准号:2012AA03A611）
