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

doi:10.1016/j.cjche.2021.09.032

中国化学工程学报 ›› 2022, Vol. 42 ›› Issue (2): 64-72.DOI: 10.1016/j.cjche.2021.09.032

• Recent Advances in Adsorptive Separation Materials and Technologies • 上一篇下一篇

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

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China

收稿日期:2021-07-01 修回日期:2021-09-15 出版日期:2022-02-28 发布日期:2022-03-30
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.

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

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China

Received:2021-07-01 Revised:2021-09-15 Online:2022-02-28 Published:2022-03-30
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.

摘要/Abstract

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

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

Xionghui Liu, Jianfeng Du, Yu Ye, Yuchuan Liu, Shun Wang, Xianyu Meng, Xiaowei Song, Zhiqiang Liang, Wenfu Yan. Boosting selective C₂H₂/CH₄, C₂H₄/CH₄ and CO₂/CH₄ adsorption performance via 1,2,3-triazole functionalized triazine-based porous organic polymers[J]. 中国化学工程学报, 2022, 42(2): 64-72.

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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

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

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