| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.2093 |
| 발표분야 |
재료 |
| 제목 |
Combining the lotus leaf effect with artificial photosynthesis: Underwater regeneration of superhydrophobic hierarchical ZnO/Si surfaces by photoelectrochemical reaction |
| 초록 |
Fabrication of stable superhydrophobic surfaces in dynamic circumstances is a key issue for practical uses of non-wetting surfaces. However, superhydrophobic surfaces have finite lifetime in underwater conditions due to the diffusion of gas pockets into the water. To overcome this limited lifetime of underwater superhydrophobicity, this study introduces a novel method for regenerating a continuous air interlayer on superhydrophobic ZnO nanorod/Si micropost hierarchical structures (HRs) via the combination of two biomimetic properties of natural leaf: superhydrophobicity from the lotus leaf effect and solar water splitting from photosynthesis. The designed n/p junction in the ZnO/Si HRs allowed for highly stable gas interlayer in water and regeneration of the underwater superhydrophobicity due to the unique ability of the surface to capture and retain a stable gas layer. The regenerative method developed in this work is expected to broaden the range of potential applications involving superhydrophobic surfaces and to create new opportunities for related technologies. |
| 저자 |
용기중, 이정한
|
| 소속 |
포항공과대 |
| 키워드 |
Superhydrophobicity; Hydrogen generation
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
