Zhu Hai, Lin Wenjun, Li Qi, Hu Yin, Guo Siyu, Wang Congmin, Yan Feng
Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China.
Department of Chemistry, ZJU-NHU United R&D Center , Zhejiang University , Hangzhou 310027 , China.
ACS Appl Mater Interfaces. 2020 Feb 19;12(7):8614-8621. doi: 10.1021/acsami.9b15903. Epub 2020 Feb 6.
The exploitation of novel porous materials for capturing/adsorption of harmful gases is considered a very promising approach to deal with air pollution. Herein, bipyridinium-based ionic covalent triazine frameworks (ICTFs) were synthesized via ZnCl-catalyzed ionothermal polymerization. The as-prepared ICTFs had a satisfactory total pore volume and specific surface of approximately 0.4582 cm g and 1000 m g, respectively. Moreover, the specific surface area, pore size and distribution, and total pore volumes of ICTFs could be adjusted via ion-exchange of the anion. The obtained ICTFs were explored as the adsorbent for the separation/adsorption of the mixed gases (SO, CO, NO, and N), and they showed the strong adsorption ability for CO (2.75 mmol g), SO (9.22 mmol g), and NO (4.05 mmol g) at 1 bar and 298 K. This unique design provides a new insight to prepare high-efficiency porous materials for CO, SO, and NO capture.
开发用于捕获/吸附有害气体的新型多孔材料被认为是应对空气污染的一种非常有前景的方法。在此，通过ZnCl催化的离子热聚合合成了基于联吡啶鎓的离子共价三嗪骨架（ICTFs）。所制备的ICTFs具有令人满意的总孔体积和比表面积，分别约为0.4582 cm³/g和1000 m²/g。此外，ICTFs的比表面积、孔径和分布以及总孔体积可通过阴离子的离子交换来调节。将所得的ICTFs用作混合气体（SO₂、CO₂、NO₂和N₂）分离/吸附的吸附剂，在1 bar和298 K下，它们对CO₂（2.75 mmol/g）、SO₂（9.22 mmol/g）和NO₂（4.05 mmol/g）表现出很强的吸附能力。这种独特的设计为制备用于捕获CO₂、SO₂和NO₂的高效多孔材料提供了新的思路。
