| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 | 25권 1호 |
| 발표분야 | 포스터-에너지저장·변환 |
| 제목 | Photocatalytic conversion of CO2 to hydrocarbon utilizing TiO2 NT arrays decorated with GQDs |
| 초록 | TiO2 nanotube arrays (TNTs) offer interesting prospects as photocatalytic. However the TiO2 band gap (≈3.2 eV) limits light absorption to the UV region, which comprises but a small fraction of the solar spectrum energy. Graphene is known to effectively absorb visible light, and due to its high conductivity, it promotes efficient charge transfer. Here, we present a new photocatalyst composed of TNT sensitized with electrodeposited graphene quantum dots (GQD). GQDs electrodeposition-duration is varied to optimize photocatalytic performance of the resulting nanostructured graphene-TNT (G-TNT) films. Under solar spectrum illumination we find optimal G-TNT samples promote a CO2 to CH4 photocatalytic conversion rate of 1.98 ppm cm−2 h−1, with carbon origin confirmed by 13CO2 isotopic test. This poster review the 'J. CO2 Util. 26 (2018) 70–79' |
| 저자 | 김동윤, 인수일 |
| 소속 | DGIST |
| 키워드 | TiO2 nanotubes; Graphene quantum dots; Nanostructure; Photocatalytic CO2 conversion |
