| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Utility of Squaraine Dyes for Dye-Sensitized Photocatalysis on Water or Carbon Dioxide Reduction |
| 초록 |
Red light-sensitized squaraine (SQ) dyes were developed and incorporated into dye-sensitized catalyst (DSC) with the formula of SQ/TiO2/Cat, and their efficacies were evaluated in terms of performance on either H2O or CO2 reduction. Pt nanoparticles or fac-[Re(4,4′-bis-(diethoxyphosphorylmethyl)-2,2′-bipyridine)(CO)3Cl] were used as each catalytic center within the DSC frame of SQ/TiO2/Pt (Type I) or SQ/TiO2/Re(I) (Type II). Type I and II showed different catalytic performances, primarily due to the choice of solvent for each catalytic condition: hydrogenation was carried out in H2O, but CO2 reduction in DMF. A suspension of Type I in water containing AscH resulted in efficient photocatalytic hydrogen evolution. However, in photocatalysis of Type II (SQ/TiO2/Re(I)) in DMF, the TiO2-bound SQ dyes are not capable of working as a low energy sensitizer because SQ was susceptible to dye decomposition in nucleophilic DMF condition, resulting in DSC deactivation for the CO2 reduction. |
| 저자 |
이대한, 최민수, 나수원, 김철훈, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
Squaraine dyes; Carbon dioxide reduction
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| E-Mail |
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