| 학회 |
한국공업화학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
8권 2호 |
| 발표분야 |
나노 |
| 제목 |
Highly photocatalytic activity of nano-sized TiO2 for degradation of methylene blue in water under UV irradiation |
| 초록 |
Titanium dioxide nanoparticles were synthesized by hydrolysis using an economic inorganic compound TiCl4 in a mixed solvent of tert-butanol and water. As-prepared powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV/VIS diffuse reflectance spectroscopy (DRS), etc. Methylene blue (MB) is a representative of a class of dyes resistant to biodegradation. The TiO2/UV photocatalytic degradation of MB has been investigated in aqueous heterogeneous suspensions. The results showed that the photocatalytic activity of TiO2 powders prepared from the mixed solutions with the volume ratio of t-BuOH/H2O = 3 exceeded that of Degussa P-25, ST-01, ST-21 and ST-31. Addition of hydroxypropyl cellulose (HPC) as a steric dispersant made it possible to reduce the size of particles to the submicrometer range. |
| 저자 |
김성연1, 장태선2, 이동구2, 김태순2, 신채호1
|
| 소속 |
1충북대, 2한국화학(연) |
| 키워드 |
광촉매 |
| E-Mail |
|
