| 학회 |
한국화학공학회 |
| 학술대회 |
2011년 봄 (04/27 ~ 04/29, 창원컨벤션센터) |
| 권호 |
17권 1호, p.822 |
| 발표분야 |
재료 |
| 제목 |
Self-assembledTiO2 nanocrystal clusters for magnetically recoverable photocatalysts |
| 초록 |
A facile route for synthesis of nanocrystal clusters of anatase TiO2 with enhanced photocatalytic activity which are capable of magnetic separation is reported. The hybrid clusters are composed of several Fe3O4 nanoparticles as cores distributing within the TiO2 matrix, an interlayer of SiO2 on each magnetic nanoparticles as a barrier, and outer layer of TiO2 nanocrystal clusters. Self-assembled TiO2 nanocrystals synthesized by one-step solvothermal treatment attribute the mesoporous structure on the outer shell. High temperature and pressure under solvothermal conditions ensured the crystal growth into a well-defined anatase phase without further heat treatment. Enhanced photocatalytic activity was achieved by a high crystallinity and large surface area. In addition, the hybrid clusters can be easily recoverable by external magnetic field and recycled while maintaining their photocatalytic activity. |
| 저자 |
주진명1, 예영진1, 이재혁1, 김다래1, 정명섭2, 이진우1, 전상민1
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| 소속 |
1포항공과대, 2중앙대 |
| 키워드 |
TiO2; photocatalyst; magnetite
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| E-Mail |
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| 원문파일 |
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