| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 |
16권 2호, p.1849 |
| 발표분야 |
에너지 |
| 제목 |
Eosin-Y dye sensitized Co-TiO2 photocatalysts for efficient water splitting under visible light |
| 초록 |
Cobalt-doped TiO2 (Co-TiO2) photocatalyst was prepared by the impregnation method using TiO2 powder (P-25) and Co(NO3)2. 6H2O. Eosin Y dye was employed for the sensitization on the surface of Co-TiO2 catalyst. By the morphological, Co particles was apparently seen or aggregated on the outer surface and near the outer surface of TiO2 via normal impregnation method. UV-DRS spectra was shown significant blue shift that confirmed Co doping into TiO2, further dye sensitized on Co-TiO2 catalyst showed a longer shift with hump peak within the wide wavelength range of 450-580 nm with decreased in the band gap (2.48 eV). By photocatalytic water splitting results, eosin Y-Co/TiO2 catalyst obtains very high rates of H2 evolution of ~ 1232.6 (mol/g.cat/h) as compared to Codoped TiO2 and bare TiO2 which might attribute to the increased surface oxygen defects by cobalt doping for the adsorption of Eosin Y on Codoped TiO2. |
| 저자 |
레띠뚜, M. Shaheer Akhtar, 양오봉
|
| 소속 |
전북대 |
| 키워드 |
Co-TiO2 |
| E-Mail |
|
| 원문파일 |
초록 보기 |
