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Microporous amine-functionalized aromatic polymers and their carbonized products for CO2 adsorption.
- Source :
-
Chemical Engineering Journal . Jul2017, Vol. 319, p65-74. 10p. - Publication Year :
- 2017
-
Abstract
- Two porous aromatic polymers incorporated with carbonyl-functionality (CBAP-1 and CBAP-2) were synthesized via a Friedel-Crafts benzoylation reaction between 1,3,5-triphenylbenzene/biphenyl and terephthaloyl chloride/1,3,5-benzenetricarbonyl trichloride in the presence of anhydrous AlCl 3 as catalyst, and post-synthetically functionalized with ethylenediamine to obtain CBAP-1(EDA) and CBAP-2(EDA). The microporous carbon materials with BET surface areas up to 1063 m 2 g −1 were also prepared by carbonization of CBAP-1 and CBAP-1(EDA). After characterization using various analytical methods, these materials were tested as adsorbents for CO 2 and CH 4 capture at ambient conditions. High CO 2 /N 2 (97.2 and 87.8) and CO 2 /CH 4 (24.3 and 22.3) selectivities were observed for CBAP-1(EDA) and CBAP-2(EDA), respectively, at 273 K/1 bar, whereas the carbonized microporous materials exhibited high adsorption capacities for CO 2 (216.0–231.6 mg g −1 ) and CH 4 (36.6–38.1 mg g −1 ). This work demonstrates that post-synthesis functionalization of a porous aromatic polymer prepared by the simple Friedel-Crafts reaction can be an effective means to produce a family of host materials for effective gas adsorption. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 319
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 122241378
- Full Text :
- https://doi.org/10.1016/j.cej.2017.03.001