| 초록 |
The polarized silver nanoparticles were introduced as CO2 carriers in CO2/N2 separation through facilitated transport. A composite membrane was prepared by adhering p-benzoquinone (p-BQ) acting as an electron acceptor and a stabilizer to the silver nanoparticles (AgNPs). Charged AgNPs were dispersed in polyvinylpyrrolidone (PVP) matrix and showed high-selective separation performance. By CO2 and N2 gas permeation experiment, it was confirmed that the membrane showed blocking phenomena of N2, resulting in the ideal CO2 selectivity of 117 or higher. These separation performances were attributable to the reversible interaction between the polar CO2 molecules and the surface-activated AgNPs. The properties of the AgNPs and membrane were investigated by XPS, TGA, FT-IR, and SEM. |
