| 학회 | 한국화학공학회 |
| 학술대회 | 2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
| 권호 | 17권 2호, p.1846 |
| 발표분야 | 재료 |
| 제목 | Preparation and characterization of silica coated mesoporous TiO2 sphere |
| 초록 | TiO2 nanoparticles has long been utilized in various industrial application such assemiconductiors, photocatalyst, optical coating due to its photonic band structure. Especially TiO2 nanoparticle complex can be utilized in sun care products because of its UV-ray shielding performance and low absorption in the visible region. However, these TiO2 nanoparticles have a crucial problem for Sunscreen because of the photocatalytic property and whitening effect. And the surface coating silica can be overcome this drawback. In this study silica coated mesoporous TiO2 were prepared by a sol-gel process. Mesoporous TiO2 sphere was synthesized using hydrolysis of titanium butoxide as a precursor. The surface coated with tetraethylorthosilicate (TEOS) as the source of silica. Silica coated mesoporous TiO2 powder were measured by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), and Nitrogen adsorption/desorption isotherm. |
| 저자 | 나현정, 윤민영, 김지만 |
| 소속 | 성균관대 |
| 키워드 | Mesoporous TiO2; silica coating |
| 원문파일 | 초록 보기 |
