| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 | 19권 2호, p.1910 |
| 발표분야 | 재료 |
| 제목 | Preparation of porous TiO2 photocatalyst for Rhodamine B degradation |
| 초록 | Titanium dioxide (TiO2) is a typical photocatalyst, due to its low cost, low toxic and good stability. When TiO2 is combined with UV light rays, photocatalytic oxidation (PCO) occurs. Reactive electrons from TiO2 tend to oxidize neighboring elements such as volatile organic compounds (VOCs), bacteria, etc. To enhance photocatalytic performance by providing more reaction sites, various porous structures have been developed. Also, the porous structure helps to prevent a recombination hole-electron pairs. In addition, strong light harvesting by light scattering can be expected as a pore size was controlled in similar size of light wavelength. The porous TiO2 was synthesized with TTIP and degusa (P25) as precursors by using Polystyrene (PS) soft template to make a porous structure. The pore size and number of TiO2 photocatalyst was controlled by controlling PS beads size and a ratio of TiO2 to PS, respectively. The crystal structure and photocatalytic activity of synthesized porous TiO2 were evaluated by X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and RhB decomposition. |
| 저자 | 이이슬, 서정윤, 박승빈 |
| 소속 | KAIST |
| 키워드 | photocatalyst; Titanium dioxide; Polystyrene; RhB decomposition |
| 원문파일 | 초록 보기 |
