| 학회 | 한국화학공학회 |
| 학술대회 | 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 | 18권 2호, p.2498 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | Thermal Stability and Photocatalytic Activity of Mesoporous TiO2 with Spherical Morphology |
| 초록 | Environmental pollutions caused by dyes and heavy metal in water have provided much attention in use of semiconductors as photocataylst to initiate photocatalytic reaction at their surface. Especially, TiO2 has been the most widely used photocatalyst because of their various advantages, such as low cost, chemical stability and non-toxicity. However anatase TiO2 has large band gap and adsorbs light only in the UV region. To solve this problem, many techniques have been examined to achieve the extend of the absorption wavelength range of TiO2 in visible region. In order to improve photocatalytic activity, we prepared mesoporous titania sphere. Mesoporous titania sphere show high photocatalytic activity because of its high surface area. In this study, mesoporous TiO2 sphere with various heat treatment temperatures were synthesized. Photocatalytic activity of the samples was evaluated by degradation of methylene blue under UV light. The resulting photocatalysts were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), N2 adsorption-desorption isotherm, and UV-Vis spectrometer. |
| 저자 | 나현정, 박수빈, 김명실, 김지만 |
| 소속 | 성균관대 |
| 키워드 | UV; Photocatalyst; TiO2; Mesoporous; Methylene blue |
| 원문파일 | 초록 보기 |
