Meta‐Separation: Complete Separation of Organic–Water Mixtures by Structural Property of Metamaterial

The separation of liquid mixtures has been studied for a long time. Separation is based on the difference in physical properties including pore size and electrostatic interaction. Therefore, there are many difficulties materials having similar such as ethanol–water 1,4-dioxane–water mixtures. While pervaporation transport rates by permeability through membrane suggested, it still high energy consumption huge facilities. Yet an existing technical gap to remove trace amounts organics dissolved water. Here, novel strategy employing metamaterial, called meta-separation using exotic structural property metamaterials rather than characteristics reported. provide various functions super-hydrophobicity roughness surface, strong capillary effect nanopore, void great absorption organics. It exhibits water contact angle 151.3° adhesive from nanopore. On other hand, ethanol immediately absorbed up 93 wt%. These differences make possible quickly easily eliminate Furthermore, their applications expected achieve environmental remediation, biofuel process, etc., without large-scale