| 초록 |
Graphene has used in various filed. Especially, graphene-based materials have widely been studied for membrane separation such as nanofiltration, reverse osmosis, and pervaporation due to its excellent physical property and chemical stability. However, they intrinsically have low solvent permeance because of their barrier property for small molecules. In this study, we prepared microwave treated nanoporous graphene. First, the nanopores on graphene surface were activated by rapid thermal annealing of graphene oxide, resulting in an amorphous carbon structure with dense nanpores. Following, the nanoporous graphene was treated with microwave to change sp3 carbons to sp2 carbons and remove remaining oxygen-containing groups. We studied the behavior of solvent molecules and organic solvent nanofiltration performance of the membrane. |
