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| 功能化Zr-MOF强化混合基质膜CO2分离 | |
| 引用本文： | 方龙龙,郑文姬,宁梦佳,张明扬,杨雨晴,代岩,贺高红. 功能化Zr-MOF强化混合基质膜CO2分离[J]. 化工进展, 2022, 41(9): 4954-4962. DOI: 10.16085/j.issn.1000-6613.2022-0462 |
| 作者姓名： | 方龙龙 郑文姬 宁梦佳 张明扬 杨雨晴 代岩 贺高红 |
| 作者单位： | 大连理工大学化工学院盘锦分院,辽宁盘锦124221;大连理工大学盘锦产业技术研究院,辽宁省化学助剂合成与分离重点实验室,辽宁盘锦124221;沈阳工业大学石油化工学院,辽宁辽阳111003;大连理工大学化工学院盘锦分院,辽宁盘锦124221;大连理工大学盘锦产业技术研究院,辽宁省化学助剂合成与分离重点实验室,辽宁盘锦124221 |
| 基金项目： | 国家自然科学基金创新研究群体(22021005);辽宁省“兴辽英才”计划青年拔尖人才(XLYC2007040);辽宁省化学助剂与合成重点实验室开放课题(ZJKF2002);辽宁“百千万人才工程”培养经费项目 |
| 摘 要： | 混合基质膜（MMMs）在气体分离领域具有良好的应用前景，金属有机框架（MOFs）由于具有高孔隙率和有机连接基团，常被用作填料制备MMMs。但由于MOFs与聚合物的界面相容性问题，MMMs的气体分离性能提升受到限制。本文合成了功能化的Zr-MOF（UiO-66-AC），并利用其与聚醚共聚酰胺（Pebax）共同制备了混合基质膜。填料中引入的羰基和羧基等基团提供了MOFs与聚合物基质之间较强的界面相互作用。与纯Pebax膜相比，UiO-66-AC/Pebax MMMs的气体渗透性能得到了显著提高。当填料质量分数为6%时，膜的CO2渗透系数为102.4 Barrer，CO2/N2和CO2/CH4选择性分别为90.6和26.0，CO2/N2分离性能突破了Robeson上限(2008)，表明该混合基质膜在CO2的分离应用上具有潜力。 |
| 关 键 词： | 金属有机框架 混合基质膜 CO2捕集 聚醚共聚酰胺 |
| 收稿时间： | 2022-03-24 |
Enhanced CO2 separation of mixed matrix membranes by functionalized Zr-MOF |
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| FANG Longlong,ZHENG Wenji,NING Mengjia,ZHANG Mingyang,YANG Yuqing,DAI Yan,HE Gaohong. Enhanced CO2 separation of mixed matrix membranes by functionalized Zr-MOF[J]. Chemical Industry and Engineering Progress, 2022, 41(9): 4954-4962. DOI: 10.16085/j.issn.1000-6613.2022-0462 | |
| Authors: | FANG Longlong ZHENG Wenji NING Mengjia ZHANG Mingyang YANG Yuqing DAI Yan HE Gaohong |
| Affiliation: | 1.School of Chemical Engineering at Panjin, Dalian University of Technology, Panjin 124221, Liaoning, China 2.Panjin Institute of Industrial Technology, Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Dalian University of Technology, Panjin 124221, Liaoning, China 3.School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, Liaoning, China |
| Abstract: | Mixed matrix membranes (MMMs) have promising applications in the field of gas separation, and metal-organic frameworks (MOFs) are often used as fillers to prepare MMMs due to their high porosity and organic linking groups. However, the improvement of gas separation performance of MMMs is limited due to the interfacial compatibility between MOFs and polymers. Herein, a functionalized Zr-MOF (UiO-66-AC) was synthesized to prepare mixed matrix membranes with poly(ether-b-amide) (Pebax). The introduction of groups such as carbonyl and carboxyl groups in the filler provided strong interfacial interactions between MOFs and the polymer matrix. Compared with pristine Pebax membranes, the gas permeability of UiO-66-AC/Pebax MMMs was significantly improved. When the filler content was 6%, the CO2 permeability coefficient of the membrane was 102.4 Barrer, the CO2/N2 and CO2/CH4 selectivities were 90.6 and 26.0, respectively, and the CO2/N2 separation performance exceeded the Robeson upper bond (2008), indicating that the UiO-66-AC/Pebax MMMs had potential for CO2 separation applications. |
| Keywords: | metal organic framework mixed matrix membranes CO2 capture Pebax |
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