| 초록 |
In this study, TiO2 doped activated carbon fibers (T-ACFs) are prepared using simple and energy efficient method as electrode materials for capacitive deionization (CDI). TiO2 sol is doped on activated carbon fibers and sintered by ultrasonication under room temperature. The morphology and crystallinity of T-ACFs are analyzed using scanning electron microscope (SEM) and X-ray diffraction (XRD), respectively. The textural properties of T-ACFs are measured by ASAP2020. The specific capacitance and desalination performance of the electrode is characterized by cyclic voltammetry (CV) and CDI experiments, respectively. In CDI experiments, salt adsorption capacity and charge efficiency of T-ACFs based electrodes are increased from 4.61 mg/g and 0.25 to 7.74 mg/g and 0.58 compared to those of untreated electrodes. These results are attributed that TiO2 doping on ACFs enhances the wettability of electrode and reduces the electrode resistance. |
