| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터) |
| 권호 |
20권 1호, p.853 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Artificial Photosynthesis or Solar Light induced Photocatalytic Activity of Hierarchical N doped TiO2 Nanostructures and Hybrid Nanocatalyst |
| 초록 |
We present sunlight-driven water splitting for H2 generation on two hybrid catalysts, hierarchical N-doped TiO2 nanostructured catalysts and metal-oxide hybrid nanocatalysts with ultrathin oxide encapsulation. Au deposited hierarchical N-doped TiO2 nanostructured catalysts with micro-, meso-, and macroporosity are synthesized by a facile self-formation route. UV-Vis diffuse reflectance spectra confirm the red shift up to 550 nm and band gap narrowing due to the interstitial N species in the TiO2. The enhanced, sunlight-driven water splitting for H2 generation (0.53%) is attributed to the synergetic effects of doping and hierarchical porous nanostructures. The present photocatalyst employed may lead to new applications within solar-powered photocatalysis. Metal-Oxide hybrid Nanocatalysts (SiO2/Pt, Rh, Ru) with ultrathin titania encapsulation have been fabricated. The photocatalytic H2 production is due to synergetic effect of hybrid nanostructure, metal as co-catalyst, the higher interface area facilitating electron transfer and excellent photostability. |
| 저자 |
Brundabana Naik1, 문송이2, 정찬호2, 김선미2, 김상훈3, 박정영2
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| 소속 |
1KAIST, 2KAIST / IBS, 3KIST |
| 키워드 |
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| E-Mail |
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| 원문파일 |
초록 보기 |
