| 초록 |
In this work, surface characteristics of chemically treated carbonized ion-exchange resin were studied for lithium ion in aqueous solution. From the results, it was found that the chemical treatments introduced functional groups onto the carbonized ion-exchange resin surfaces. The amount of lithium ion recovery was enhanced by basic treatments and we characterized lithium ion adsorption-desorption efficiency. The structure and morphology of composite were examined by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS). The specific surface area of the composites was calculated from N2/77K adsorption/desorption isotherms by the Brunauer-Emmett-Teller (BET) equation. Adsorption-desorption capacities of lithium ion were examined by AAS (AA-SCANI; Thermo Jarrell Ash Co.). |
