SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2025, Vol. 82 ›› Issue (6): 95-104.DOI: 10.1016/j.cjche.2025.01.009

Previous Articles     Next Articles

Nitrogen-doped composite aerogels from ZIF-8 derived porous carbon and chitosan for CO2 adsorption

Xiaoqian Peng1, Shaojun Liu1, Jing Zhang1, Xu Zhang1, Xiaochan Liu1, Zhipeng Yuan1, Guoran Liu1, Xibin Yi1, Serguei Filatov2   

  1. 1. Shandong Key Laboratory for Special Silicon-containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China;
    2. Laboratory of Hydrogen Energy, Institute of Hent and Mass Transfer of the National Academy of Science of Belarus, Minsk 220072, Belarus
  • Received:2024-09-19 Revised:2024-12-26 Accepted:2025-01-08 Online:2025-03-14 Published:2025-08-19
  • Contact: Jing Zhang,E-mail:zhangjing@sdas.org;Xibin Yi,E-mail:yixb@sdas.org
  • Supported by:
    This work is supported by the Natural Science Foundation of Shandong Province (ZR2021ME124, ZR2023ME033), Science-Education-Industry Integration Innovation Pilot Project of Qilu University of Technology (2024GH09), Innovation Capacity Improvement Project of Small and Medium-Sized Technology-Based Enterprise of Shandong Province (2023TSGC0706, 2022TSGC1022), Technological Innovation Projects of Shandong Province (202350700179; 202351600213), Science and technology plan project of Shandong Railway Investment Holding Group (TTKJ2023-01).

Nitrogen-doped composite aerogels from ZIF-8 derived porous carbon and chitosan for CO2 adsorption

Xiaoqian Peng1, Shaojun Liu1, Jing Zhang1, Xu Zhang1, Xiaochan Liu1, Zhipeng Yuan1, Guoran Liu1, Xibin Yi1, Serguei Filatov2   

  1. 1. Shandong Key Laboratory for Special Silicon-containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China;
    2. Laboratory of Hydrogen Energy, Institute of Hent and Mass Transfer of the National Academy of Science of Belarus, Minsk 220072, Belarus
  • 通讯作者: Jing Zhang,E-mail:zhangjing@sdas.org;Xibin Yi,E-mail:yixb@sdas.org
  • 基金资助:
    This work is supported by the Natural Science Foundation of Shandong Province (ZR2021ME124, ZR2023ME033), Science-Education-Industry Integration Innovation Pilot Project of Qilu University of Technology (2024GH09), Innovation Capacity Improvement Project of Small and Medium-Sized Technology-Based Enterprise of Shandong Province (2023TSGC0706, 2022TSGC1022), Technological Innovation Projects of Shandong Province (202350700179; 202351600213), Science and technology plan project of Shandong Railway Investment Holding Group (TTKJ2023-01).

Abstract: It is well known that adsorbent material is the key to determine the CO2 adsorption performance. Herein, ZIF-8 derived porous carbon (ZIF-8-C) is anchored into the framework of a novel composite aerogel (ZCPx), which utilizes chitosan (CS) and polyvinyl alcohol (PVA) as raw materials. By controlling the ratio of ZIF-8-C, the developed hierarchical porous structures combine the advantages of micropores, mesopores, and macropores. Besides, the ligand material of ZIF-8-C and the amino group from CS are two sources of the high nitrogen content of ZCPx. The optimized sample ZCP4 shows a high nitrogen content of 6.78%, which can create more active centers and supply basic sites, thereby enhancing the CO2 adsorption capacity. Moreover, ZCP4 composite aerogel presents a CO2 adsorption capacity of 2.26 mmol·g-1 (298 K, 0.1 MPa) and CO2/N2 selectivity (SCO2/N2) can reach 20.02, and the dynamic breakthrough experiment is performed to confirm the feasibility of CO2/N2 actual separation performance, proving that the composite aerogel is potential candidates for CO2 adsorption.

Key words: Chitosan, ZIF-8 derived porous carbon, Aerogel, CO2 adsorption

摘要: It is well known that adsorbent material is the key to determine the CO2 adsorption performance. Herein, ZIF-8 derived porous carbon (ZIF-8-C) is anchored into the framework of a novel composite aerogel (ZCPx), which utilizes chitosan (CS) and polyvinyl alcohol (PVA) as raw materials. By controlling the ratio of ZIF-8-C, the developed hierarchical porous structures combine the advantages of micropores, mesopores, and macropores. Besides, the ligand material of ZIF-8-C and the amino group from CS are two sources of the high nitrogen content of ZCPx. The optimized sample ZCP4 shows a high nitrogen content of 6.78%, which can create more active centers and supply basic sites, thereby enhancing the CO2 adsorption capacity. Moreover, ZCP4 composite aerogel presents a CO2 adsorption capacity of 2.26 mmol·g-1 (298 K, 0.1 MPa) and CO2/N2 selectivity (SCO2/N2) can reach 20.02, and the dynamic breakthrough experiment is performed to confirm the feasibility of CO2/N2 actual separation performance, proving that the composite aerogel is potential candidates for CO2 adsorption.

关键词: Chitosan, ZIF-8 derived porous carbon, Aerogel, CO2 adsorption