| 초록 |
Hydrogen (H2) purification is one of the most promising technologies for green energy application using H2. Zeolitic imidazolate framework (ZIF) has widely been studied for gas separation. However, the growth of the ZIF layer on polymeric supports is highly challenging. In this work, we prepared ZIF-8@graphene oxide (GO) composite membrane. First, the GO layer was coated by bar-coating on a polymeric support. Following, the GO was treated with hot-pressing, which generates abundant defects on the graphene surface, resulting in enhancing the permeability of H2. Finally, the ZIF-8 nanoparticles were grown on the defective surface of multilayer graphene, which can improve the selectivity by covering the defects of graphene sheets. We investigated the H2/hydrocarbon separation capability of the prepared ZIF-8@GO composite membranes. |
