| 초록 |
Metal oxide/carbon core-shell which add properties of carbon nanomaterials to the inherent combine carbon nanoparticles have the potential to have better optical, electrical, and mechanical properties than using only metal oxide materials. Here I have designed TiO2 NPs (Degussa P25) @ carbon shell with 1 to 2 nm thickness are prepared as a photocatalyst. The photocatalyst shows a higher photocatalytic performance than the P25 by carbon shell. In the hexavalent chrome ion reduction reaction using TiO2 NPs @ carbon shell , the initial reaction rate is doubled compared to P25. Secondly, I have studied IONPs @ carbon shell for multimodal theragnosis. IONPs are currently used as magnetic resonance imaging (MRI) contrast agents due to its superparamagnetism Carbon shells can exhibit photothermal effects because they have various energy states, so that IONPs @ carbon shell could be used for photothermal therapy and MRI. When irradiating 606 nm laser on IONPs @ carbon shell for 10 min, temperature increase by 5 oC (47 oC) compared to IONPs. |
