| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 | 21권 1호, p.1026 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | Thermal Stability of Disordered Mesoporous TiO2 and Its Photocatalytic Activity of Methylene Blue Photo-Degradation |
| 초록 | TiO2 is one of the best semiconductors for photocatalysis due to high band gap energy, high stability and catalytic activity, and non-toxicity. For high photocatalytic activity, photocatalysts should have high specific area and crystallinity. However, nanopores could be collapsed at high temperature which is the condition to form high crystallinity. Here, we reported that thermally stable disordered nanoporous TiO2 was synthesized by in-situ hydrolysis of titanium glycolate at various heat treatment conditions from 100 °C to 700 °C. Upto 500 °C, nanoporous structure of synthesized material is thermally stable with relatively high BET surface area (50 m2•g-1) and high anatase crystallinity. Photocatalytic activity of synthesized products was evaluated with methylene blue solution under UV 254 nm lamp. Among the samples, heat treated at 500 °C sample exhibits the highest photocatalytic activity due to its relatively higher surface area and crystallinity. |
| 저자 | 박수빈, 이정화, 김지만 |
| 소속 | 성균관대 |
| 키워드 | Photocatalysis; Nanoporous materials; Titanium dioxide |
| 원문파일 | 초록 보기 |
