| 초록 |
Advances made in membrane technology have to do with either enhancing separation efficiency of the membrane or improving the permeation flux. Enhancing the separation efficiency, however, inevitably led to reducing the permeation flux, and improving the permeation flux resulted in a loss in the separation efficiency. Here, we suggest multiscale porous membranes that allow for high permeation flux without sacrificing separation efficiency. For creating the multiscale architectured membranes, primary structure is first prepared by assembling colloidal particles, filling the gaps to form inverse opal structure. Then, secondary nanostructures are incorporated inside the structured template to elaborately tune the pore size, tortuosity, and interfacial properties. Finally, the constructed multiscale architectures are utilized for water-treatment and energy-generation applications, such as ultrafiltration, nanofiltration or separators for Li-ion batteries. |
