| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 | 25권 1호 |
| 발표분야 | [국제협력] 우수외국인연구자세션 |
| 제목 | Economically viable and stable: Reduced titania-Cu2O Z-scheme heterostructures for photocatalytic CO2 reduction to CH4 |
| 초록 | Photocatalytic conversion of CO2 and water vapor to hydrocarbon fuels is a promising approach for storing solar energy. However, still certain issues including low product yields, limited photocatalyst stability and relatively high cost have hampered practical implementation of this technology. In the present work, a unique, stable, and inexpensive photocatalyst comprised of earth-abundant materials: a reduced titania-Cu2O Z-scheme heterostructure under illumination for 6 h, enabled 0.13 % photoreduction of highly diluted CO2 with water vapors to 462 nmol g−1 of CH4 while showing excellent stability over seven testing cycles (42 h). Our studies show, the Z-scheme inhibits Cu2O photocorrosion, while its synergistic effects with reduced titania result in sustained CH4 formation. To the best of our knowledge stability exhibited by the reduced titania-Cu2O Z-scheme is the highest for any Cu-based photocatalyst. Reference: S.-I In et al. Appl. Catal. B Environ, 279 (2020): 119344. |
| 저자 | ali shahzad, 인수일 |
| 소속 | DGIST |
| 키워드 | Reduced titania; Oxygen vacancy; Z-scheme heterostructure; Photocatalysis |
