| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 포스터-무기재료 |
| 제목 | Expanded solar absorption spectrum to improve photoelectrochemical oxygen evolution reaction: Synergistic effect of upconversion nanoparticles and ZnFe2O4/TiO2 |
| 초록 | The key to increasing photocatalyticactivity is to maximize solar spectrum utilization and minimize therecombination of photosynthetic carriers. As a photoanode and photocatalyst, TiO2possesses the outstanding ability of photoconversion using the UV light. Toimprove solar absorption efficiency, we designed a new heterojunctionphotoelectrode using zinc ferrite that absorbs visible light and upconversionnanoparticles (UCNP) that absorbs near-infrared light and emits visible light. UCNP-decoratedZnFe2O4/TiO2 photocatalyst was fabricated by drop-castingZFO nanoparticles and UCNPs onto TiO2 nanopillars grown on a transparentfluorine-doped tin oxide (FTO) substrate. The applied bias photon-to-current efficiencyof UCNP-ZFO/TiO2 was 4.1 times higher than that of TiO2, and its photoanode had the lowest chargetransfer resistance and highest charge density among the preparedphotoelectrodes. |
| 저자 | 이송렬, 임윤구, 박용일 |
| 소속 | 전남대 |
| 키워드 | PEC; UCNP; Znic ferrite; TiO2 |
