| 초록 |
In this presentation, we suggest multiscale porous membranes that allow for high permeation flux without sacrificing separation efficiency. In order to create the multiscale architectured membranes, primary structure is first prepared by assembling closely packed colloidal particles, filling the gaps with a suitable materials, and dissolving out the particles to form inverse opal structure. Then, secondary nanostructures are incorporated inside the structured template to eleaborately tune the pore size, tortuosity, and interfacial properties. Embedded nanostructures can be created by layer-by-layer assembly of another coloidal particles, etc. Finally, the constrcuted multiscale architectures are utilized for water-treatment applications. Due to the perfectly ordered characteristics of the multiscale architecture, it offers advantages of reduced tortuosity as well as pore size uniformity, resulting in high permeability and selectivity simultanesouly. |
