| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-무기재료 |
| 제목 |
Synthesis of F-TiO2/TiOF2 mixture for photocatalyst |
| 초록 |
The mixture of F-TiO2/TiOF2 has been synthesized using titanium (IV) isopropoxide (TTIP) as titanium source by thermal fluorination at high temperature according to different partial pressure of fluorine gas. The morphological properties and crystalline of thermally fluorinated photocatalysts were investigated using X-Ray diffraction (XRD) and Scanning Electron Microscope (SEM). The results showed that the crystal form of F-TiO2/TiOF2 mixture was generated with different ratios by thermal fluorination. With increase of the fluorine partial pressure, ratios of cubic-shaped TiOF2 increased compared to globular-shaped TiO2. Also, the degradation rate constant of thermally fluorinated photocatalysts in high partial pressure of fluorine gas exhibited approximately 70 times more than that of non-fluorinated TiO2. It is due to increase of the surface hydroxyl group content and oxygen vacancies. |
| 저자 |
정진영, 이다영, 박미선, 이영석
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| 소속 |
충남대 |
| 키워드 |
F-TiO2; TiOF2; thermal fluorination; photocatalysts; oxygen vacancies
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| E-Mail |
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