SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 42 ›› Issue (2): 64-72.DOI: 10.1016/j.cjche.2021.09.032

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Boosting selective C2H2/CH4, C2H4/CH4 and CO2/CH4 adsorption performance via 1,2,3-triazole functionalized triazine-based porous organic polymers

Xionghui Liu, Jianfeng Du, Yu Ye, Yuchuan Liu, Shun Wang, Xianyu Meng, Xiaowei Song, Zhiqiang Liang, Wenfu Yan   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2021-07-01 Revised:2021-09-15 Online:2022-03-30 Published:2022-02-28
  • Contact: Zhiqiang Liang,E-mail:liangzq@jlu.edu.cn;Wenfu Yan,E-mail:yanw@jlu.edu.cn
  • Supported by:
    We thank the National Natural Science Foundation of China (21871104, 21621001 and U1967215) and the 111 project the Ministry of Education of China (B17020) for supporting this work.

Boosting selective C2H2/CH4, C2H4/CH4 and CO2/CH4 adsorption performance via 1,2,3-triazole functionalized triazine-based porous organic polymers

Xionghui Liu, Jianfeng Du, Yu Ye, Yuchuan Liu, Shun Wang, Xianyu Meng, Xiaowei Song, Zhiqiang Liang, Wenfu Yan   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
  • 通讯作者: Zhiqiang Liang,E-mail:liangzq@jlu.edu.cn;Wenfu Yan,E-mail:yanw@jlu.edu.cn
  • 基金资助:
    We thank the National Natural Science Foundation of China (21871104, 21621001 and U1967215) and the 111 project the Ministry of Education of China (B17020) for supporting this work.

Abstract: Nitrogen-rich porous organic polymers have shown great potentials in gas adsorption/separation, photocatalysis, electrochemistry, sensing and so on. Herein, 1,2,3-triazole functionalized triazine-based porous organic polymers (TT-POPs) have been synthesized by the copper-catalyzed azide-alkyne cycloaddition (Cu-AAC) polymerization reactions of 1,3,5-tris(4-azidophenyl)-triazine with 1,4-diacetylene benzene and 1,3,5-triacetylenebenzene, respectively. The characterizations of N2 adsorption at 77 K show TT-POPs possess permanent porosity with BET surface areas of 666 m2·g-1 (TT-POP-1) and 406 m2·g-1 (TT-POP-2). The adsorption capacities of TT-POPs for CO2, CH4, C2H2 and C2H4, as well as the selective separation abilities of CO2/N2, CO2/CH4, C2H2/CH4 and C2H4/CH4 were evaluated. The gas selective separation ratio of TT-POPs was calculated by the ideal adsorbed solution theory (IAST) method, wherein the selective separation ratios of C2H2/CH4 and C2H4/CH4 of TT-POP-2 was 48.4 and 13.6 (298 K, 0.1 MPa), which is comparable to other adsorbents (5.6-120.6 for C2H2/CH4, 10-26 for C2H4/CH4). This work shows that the 1,2,3-triazole functionalized triazine-based porous organic polymer has a good application prospect in natural gas purification.

Key words: Porous organic polymers, Triazole, CO2 capture, Light hydrocarbons, Gas separation, Natural gas purification

摘要: Nitrogen-rich porous organic polymers have shown great potentials in gas adsorption/separation, photocatalysis, electrochemistry, sensing and so on. Herein, 1,2,3-triazole functionalized triazine-based porous organic polymers (TT-POPs) have been synthesized by the copper-catalyzed azide-alkyne cycloaddition (Cu-AAC) polymerization reactions of 1,3,5-tris(4-azidophenyl)-triazine with 1,4-diacetylene benzene and 1,3,5-triacetylenebenzene, respectively. The characterizations of N2 adsorption at 77 K show TT-POPs possess permanent porosity with BET surface areas of 666 m2·g-1 (TT-POP-1) and 406 m2·g-1 (TT-POP-2). The adsorption capacities of TT-POPs for CO2, CH4, C2H2 and C2H4, as well as the selective separation abilities of CO2/N2, CO2/CH4, C2H2/CH4 and C2H4/CH4 were evaluated. The gas selective separation ratio of TT-POPs was calculated by the ideal adsorbed solution theory (IAST) method, wherein the selective separation ratios of C2H2/CH4 and C2H4/CH4 of TT-POP-2 was 48.4 and 13.6 (298 K, 0.1 MPa), which is comparable to other adsorbents (5.6-120.6 for C2H2/CH4, 10-26 for C2H4/CH4). This work shows that the 1,2,3-triazole functionalized triazine-based porous organic polymer has a good application prospect in natural gas purification.

关键词: Porous organic polymers, Triazole, CO2 capture, Light hydrocarbons, Gas separation, Natural gas purification