| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
무기재료_포스터 |
| 제목 |
Two-dimensional hybrid composites of rGO/La2Ti2O7/NiFe-LDH for highly efficient photocatalytic water splitting reaction |
| 초록 |
We report a strategically designed heterojunction between three types of two-dimensional materials to promote efficient charge separation and to further optimize the water-splitting reaction via photocatalytic reaction without the usage of any noble metal cocatalysts. The material is composed of reduced graphene oxide (rGO) for the hydrogen evolution reaction cocatalyst, NiFe-layered double hydroxide (NiFe-LDH) for the oxygen evolution reaction cocatalyst, and lanthanum titanate (LTO) as the photocatalyst. The photo-generated charges from LTO are efficiently separated to rGO (electron sink) and NiFe-LDH (hole sink) for the water splitting reaction. Under the solar simulator (AM 1.5), the catalyst exhibited enhanced HER performances up to 9 times compared to the control sample. The mechanism of such high performance of the synthesized photocatalysts could be attributed to the efficient charge separation and longer lifetime of photogenerated charges. |
| 저자 |
Ramireddy Boppella1, 최치훈2, 문주호1, 김동하2
|
| 소속 |
1연세대, 2이화여자대 |
| 키워드 |
semiconductor photocatalyst; NiFe-LDH; rGO; hydrogen evolution
|
| E-Mail |
|
