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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 27, Number 3
JKCSEZ 27(3)
June 20, 1983 

 
Title
Quantum Yield of Photoinduced Electron Transfer Across Microemulsion Interfaces

마이크로 에멀젼 계면을 통과하는 광유발전자의 양자수득률
Author
Yong-Tae Park

박용태
Keywords
Abstract
태양에너지의 한 저장방법으로 녹색식물의 광합성을 모방한 계, 마이크로 에멀젼(microemulsion)을 고안하였으며, 이때 광에 의해서 유발된 전자가 계면을 통하는 능력을 측정하였다. 광증감제로 류테니늄비피리딘 착물[Ru(bipy)3]2+을 사용, 전자공여체 EDTA와 함께 물층에, 전자수용체 HV2+(Hexadecyl violagan)이 계면에 각각 존재할 때 광에 의한 전자전이에 따르는 HV+ 형성수득률은 0.12이였다. 또 계면에 BNA+(Benzyl nicotinamide)를 넣고 유층에 아조(azo) 화합물을 넣었을 때는 azobenzene이 환원되었는데, 이때 양자수득률이 줄었다. (Φ = 0.0016) 양이온 마이크로 에멀젼과 음이온 마이크로에멀젼의 광유발 전자전이 능력을 비교하였다. 광증감제로 유기염료인 로즈벤갈(Rose bengal)을 시험하였는데, 류테니늄착물보다 낮지 않았지만 광유발 전자가 계면에 전이되는 것을 알았다.

Devices that mimic the natural photosynthetic pathway are of considerable interest as fuel sources. Quantum yield of viologen radical formation in several water-in-oil microemulsion system were measured. The yield of hexadecylviologen radical formation in microemulsion system using EDTA as an electron donor, ruthenium bipyridinium complex as photosensitizer, and hexadecylviologen as an electron acceptor was 12%. When benzylnicotinamide was inserted in the interface of the microemulsion and azo compound was dissolved in oil face, the quantum yield of hydroazo compound was 0.16. Organic dye (Rose bengal) was used as photosensitizer for the photoinduced electron transfer reaction. In anionic microemulsion no electrontransfer was observed.

Page
213 - 217
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