| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터) |
| 권호 |
20권 1호, p.368 |
| 발표분야 |
생물화공 |
| 제목 |
Application of TiO2-deposited Diatom for Photocatayltic Degradation of Organic Compounds |
| 초록 |
Diatoms are single cell algae that make silica shells (frustules) with nanoscale features imbedded within two-dimensional arrays of pores. Living diatom itself metabolically insert nano-structured titanium dioxide into its surface. Navicula sp. (#1271) and Calonies schroederi form Korean culture bank (KMMCC) were cultured in natural sea water supplemented with f/2 nutrients in the photo-bioreactor. A two- stage photo-bioreactor was used for increase the incorporation of titanium into the silica frustule. In stage I, diatom cells grown up in dissolved silicon until silicon starvation. In stage II, soluble titanium and silicon were continuously fed to the silicon starved cell suspension while the titanium was taken up. Calonies schroederi is more preferrable in terms of the growth rate, the frustutle structure stability and the incorporated amount of TiO2 than Navicula sp. TiO2-deposited Calonies schroederi showed photocatalytic activity and could be employed for degradation of organic compound models such as Congo Red and Methylene Blue. |
| 저자 |
백승필, Shipra Kumari, 장의경, 민기하, 여기백, Khoa My Nguyen, 유영하, 전소영, 기미란
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| 소속 |
고려대 |
| 키워드 |
Diatom; TiO2; Biogenic
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| E-Mail |
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| 원문파일 |
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