Novel porphyrinic porous organic frameworks for high performance separation of small hydrocarbons.

A series of Porphyrinic-CTF materials are synthesized under ionothermal condition with high surface areas (>3200 m(2)/g) and tunable pore sizes. The ZnP-CTFs exhibit high adsorption capacities and selectivity towards C₃H₈, and C₂H₆ over CH₄ as IAST prediction. Furthermore, we explore the utility of ZnP-CTF for gas chromatographic separation of the small hydrocarbons mixture based on their different van der waals interactions and polarizability. More importantly, the fast breakthrough test further proves that the ZnP-CTF-400 and ZnP-CTF-500 can separate the small hydrocarbons under kinetic dynamic conditions.