Superhydrophobic photothermal icephobic surfaces based on candle soot
Abstract
Here cheap candle soot is utilized to make superhydrophobic photothermal icephobic surfaces. The candle soot provides the hierarchical structure for superhydrophobicity; meanwhile, sunlight can be trapped in the hierarchical structure to enhance the light absorption leading to a high photothermal efficiency. The superhydrophobicity can help maintain the excellent photothermal performance. Firstly, the superhydrophobic candle soot surface can remove the melted water immediately leaving a dry surface, which avoids the reflectance and thermal mass of melted water and thus reduces the heat loss. Secondly, the surface is capable of self-cleaning; dust and other contaminants can be washed away by rain or melted water to prevent the blocking and scattering of sunlight, highly benefiting the maintaining of long-term high photothermal efficiency.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 11, 2020
- Source ID
- 10.1073/pnas.2001972117
Entities
People
- Bowen Yao
- Dong Wu
- Mutian Hua
- Shuwang Wu
- Ximin He
- Xinyuan Zhu
- Yanfei Ma
- Yichen Yan
- Yingjie Du
- Yousif Alsaid
Organizations
- Air Force Office of Scientific Research
- Office of Naval Research
- Shanghai Jiao Tong University
- University of California