Abstract
Azo and porphyrin bifunctionalized porous polymers networks (azo-PPors) were synthesized via a catalyst-free direct coupling of tetra(4-nitrophenyl)porphyrin and several readily available aryl amine monomers. The resulting porous solids exhibited surface areas up to 750 m2 g-1, with high thermal and chemical stability. Owing to the high concentration of Lewis basic N-sites at their surfaces (derived from porphyrin rings and azo units), these azo-PPors have high CO2 capture (up to 2.45 mmol g-1) and good selectivity for CO2/CH4 adsorption (5) at 273 K/1.0 bar, thus showing good potential for CO2 capture.
Original language | English |
---|---|
Pages (from-to) | 98508-98513 |
Number of pages | 6 |
Journal | RSC Advances |
Volume | 5 |
Issue number | 119 |
DOIs | |
State | Published - 2015 |