| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
Virtual Lightning Session |
| 제목 |
TiO2 Nanotube Photocatalysts Decorated with Perovskite Quantum Dots for CO2 Conversion |
| 초록 |
Nanostructured TiO2 is considered as a promising photocatalyst for CO2 conversion. However, even the nanostructured TiO2 can not overcome its innate limitations such as its wide bandgap. In this work, we demonstrate the synthesis of perovskite quantum dots (PQDs) and its incorporation to TiO2 nanotubes (TNTs) as light absorber. Two different PQDs based on CH3NH3PbBr3 and CH3NH3PbI3 are prepared and decorated to TNT. The PQD-decorated TNTs are characterized, varying the PQD solution concentration. The PQD-decorated TNTs show the enhanced absorbance through all measured wavelengths and excellent charge tranfer properties. In particular, among the samples, the PQD/TNT photocatalysts prepared with 70-times diluted PQD solution produce the most improved photocurrents under CO2-saturated electrolyte both for CH3NH3PbBr3 QD/TNT (~50 μA) and CH3NH3PbI3 QD/TNT (~70 μA), suggesting superior photocatalytic capability for CO2 conversion. |
| 저자 |
Chen-Chin Lee, Yun-Ju Liu, Hyeonseok Lee
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| 소속 |
National Sun Yat-sen Univ. |
| 키워드 |
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| E-Mail |
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