| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.950 |
| 발표분야 |
재료 |
| 제목 |
Preparation and Water Splitting Activity of NaTaO3 Photocatalyst Prepared by Spray Pyrolysis |
| 초록 |
Effects of operating variable on the preparation activity of NaTaO3 photocatalyst by spray pyrolysis were investigated for the optimum design and operation of the spray pyrolysis process. The photocatalytic activities of the prepared NaTaO3 for water splitting under UV were examined in a slurry reactor. Temperatures of precursor preparation and spray pyrolysis, residence time of precursor in the pyrolysis furnace, loading ratio of co-catalyst (NiO), ratio of Na/Ta were chosen as governing variables for the preparation and evaluation of photocatalytic activity of NaTaO3 powder. In considering the water splitting in a slurry reactor by using the prepared NaTaO3, effects of concentrations of photocatalyst and a sacrificial agent (methanol) on the photocatalytic activity were studied in terms of apparent photocatalytic activity (APA) as well as quantum yield (QY). The optimum conditions were suggested for the maximum photocatalytic activity and preparation of NaTaO3 within these experimental conditions. |
| 저자 |
강현우1, 임성남1, 박승빈2
|
| 소속 |
1한국과학기술원, 2한국과학기술원 / 초미세화학공정센터 |
| 키워드 |
photocatalysis; water splitting; spray pyrolysis; NaTaO3
|
| E-Mail |
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| 원문파일 |
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