| 초록 |
As the lithium-ion battery (LIB) market grows, the recovery of metal ions from spent batteries is also becoming more important in the future. There are several methods for recovery metal ions such as chemical precipitation, electrochemical deposition, solvent extraction, etc. But these methods require high energy and cost consumption, and additional processes. Therefore, using membrane separation can have many advantages due to easy control of d-spacing, surface charge, and pore sizes. Herein, we studied the effect on ion selectivity of GO membrane depending on different hot pressing times. The bar coating method was used for preparing the GO membrane, and the hot-pressing method was used to control the pore size and d-spacing of the GO membrane. Therefore, the behavior of monovalent and divalent ions in the GO membranes according to the hot-pressing time was confirmed. |
