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Rational Fabrication of Benzene-Linked Porous Polymers for Selective CO2 Capture

文献类型： 外文期刊

作者： Yan, Xiaofei 1 ; Zhai, Fuqun 1 ; Sun, Zifei 1 ; Chen, Jingwen 2 ; Xue, Dingming 1 ; Miao, Jie 3 ;

作者机构： 1.Minist Ecol & Environm, Nanjing Inst Environm Sci, 8 Jiangwangmiao St, Nanjing 210042, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Key Lab Protected Agr Engn Middle & Lower Reaches, Minist Agr & Rural Affairs, Nanjing 210014, Peoples R China

3.Nanjing Tech Univ, Sch Environm Sci & Engn, Nanjing 211816, Peoples R China

关键词： CO2 capture; adsorption; selectivity; porous polymers; polymerization

期刊名称：SEPARATIONS （ 影响因子：2.6； 五年影响因子：2.7 ）

ISSN：

年卷期： 2023 年 10 卷 12 期

页码：

收录情况： SCI

摘要： Various porous polymer materials have been prepared for the separation of CO2 from mixed gases. However, complex processes, expensive monomers, and costly catalysts are commonly used for their synthesis, making the adsorbents difficult to achieve in industrial applications. Herein, we developed a strategy to fabricate a series of benzene rings containing porous polymer materials (B-PPMs) via a facile condensation reaction of two inexpensive monomers, namely tetraphenylsilane and 1,4-bis(bromomethyl)benzene. The B-PPMs are verified to have accessible surface areas, large pore volumes, and appreciate pore sizes via a series of characterizations. The B-PPM-2 exhibits the best CO2 adsorption amount of 67 cm(3)center dot g(-1) at 273 K and 1 bar, while the CO2/N-2 selectivity can reach 64.5 and 51.9 at 273 K and 298 K, respectively. Furthermore, the adsorbent B-PPM-2 can be completely regenerated after five cycles of breakthrough experiments under mild conditions, which may provide promising candidates for selective capture of CO2 from mixtures.

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