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

doi:10.1016/j.cjche.2023.11.012

Chinese Journal of Chemical Engineering ›› 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 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:2024-06-01 Published:2024-03-28
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).

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 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

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).

Abstract

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

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

Feifan Yang, Yuanhang Jin, Jiangying Liu, Haipeng Zhu, Rong Xu, Fenjuan Xiangli, Gongping Liu, Wanqin Jin. Regulation of interlayer channels of graphene oxide nanosheets in ultra-thin Pebax mixed-matrix membranes for CO₂ capture[J]. Chinese Journal of Chemical Engineering, 2024, 67(3): 257-267.

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

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

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