SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2024, Vol. 67 ›› Issue (3): 257-267.DOI: 10.1016/j.cjche.2023.11.012

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Regulation of interlayer channels of graphene oxide nanosheets in ultra-thin Pebax mixed-matrix membranes for CO2 capture

Feifan Yang1, Yuanhang Jin1, Jiangying Liu1, Haipeng Zhu1, Rong Xu2, Fenjuan Xiangli3, Gongping Liu1, Wanqin Jin1   

  1. 1 State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;
    2 Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
    3 Shandong Production and Research Long Membrane Technology Development Co., Ltd., Yantai Economic Development Zone, Yantai 265505, China
  • 收稿日期:2023-09-22 修回日期:2023-11-27 出版日期:2024-03-28 发布日期:2024-06-01
  • 通讯作者: Haipeng Zhu,E-mail address:zhuhaipeng@njtech.edu.cn.
  • 基金资助:
    This work was financially supported by The Natural Science Foundation of the Jiangsu Higher Education Institutions of China (22KJB530007, 22KJA530001), National Natural Science Foundation of China (22208151), the Natural Science Foundation of Jiangsu Province (BK20220002) and the State Key Laboratory of MaterialsOriented Chemical Engineering (SKL-MCE-22B07).

Regulation of interlayer channels of graphene oxide nanosheets in ultra-thin Pebax mixed-matrix membranes for CO2 capture

Feifan Yang1, Yuanhang Jin1, Jiangying Liu1, Haipeng Zhu1, Rong Xu2, Fenjuan Xiangli3, Gongping Liu1, Wanqin Jin1   

  1. 1 State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;
    2 Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
    3 Shandong Production and Research Long Membrane Technology Development Co., Ltd., Yantai Economic Development Zone, Yantai 265505, China
  • Received:2023-09-22 Revised:2023-11-27 Online:2024-03-28 Published:2024-06-01
  • Contact: Haipeng Zhu,E-mail address:zhuhaipeng@njtech.edu.cn.
  • Supported by:
    This work was financially supported by The Natural Science Foundation of the Jiangsu Higher Education Institutions of China (22KJB530007, 22KJA530001), National Natural Science Foundation of China (22208151), the Natural Science Foundation of Jiangsu Province (BK20220002) and the State Key Laboratory of MaterialsOriented Chemical Engineering (SKL-MCE-22B07).

摘要: For the application of carbon capture by membrane process, it is crucial to develop a highly permeable CO2-selective membrane. In this work, we reported an ultra-thin polyether-block-amide (Pebax) mixedmatrix membranes (MMMs) incorporated by graphene oxide (GO), in which the interlayer channels were regulated to optimize the CO2/N2 separation performance. Various membrane preparation conditions were systematically investigated on the influence of the membrane structure and separation performance, including the lateral size of GO nanosheets, GO loading, thermal reduction temperature, and time. The results demonstrated that the precisely regulated interlayer channel of GO nanosheets can rapidly provide CO2-selective transport channels due to the synergetic effects of size sieving and preferential adsorption. The GO/Pebax ultra-thin MMMs exhibited CO2/N2 selectivity of 72 and CO2 permeance of 400 GPU (1 GPU = 10-6 cm3(STP)·cm-2·s-1·cmHg-1), providing a promising candidate for CO2 capture.

关键词: Mixed-matrix membrane, Ultra-thin membrane, Pebax, Graphene oxide, CO2 capture

Abstract: For the application of carbon capture by membrane process, it is crucial to develop a highly permeable CO2-selective membrane. In this work, we reported an ultra-thin polyether-block-amide (Pebax) mixedmatrix membranes (MMMs) incorporated by graphene oxide (GO), in which the interlayer channels were regulated to optimize the CO2/N2 separation performance. Various membrane preparation conditions were systematically investigated on the influence of the membrane structure and separation performance, including the lateral size of GO nanosheets, GO loading, thermal reduction temperature, and time. The results demonstrated that the precisely regulated interlayer channel of GO nanosheets can rapidly provide CO2-selective transport channels due to the synergetic effects of size sieving and preferential adsorption. The GO/Pebax ultra-thin MMMs exhibited CO2/N2 selectivity of 72 and CO2 permeance of 400 GPU (1 GPU = 10-6 cm3(STP)·cm-2·s-1·cmHg-1), providing a promising candidate for CO2 capture.

Key words: Mixed-matrix membrane, Ultra-thin membrane, Pebax, Graphene oxide, CO2 capture