Direct fabrication of superhydrophobic ceramic surfaces with ZnO nanowires

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• 作者：Jihoon Chung ; Sukyung Lee ; Hyungseok Yong…
• 关键词：Zinc ; oxide nanowires ; Self ; assembly method ; Super ; hydrophobic ceramic surface ; Water and alcohol repellent ; Wettability
• 刊名：Journal of the Korean Physical Society
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：68
• 期：3
• 页码：452-455
• 全文大小：1,571 KB
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• 作者单位：Jihoon Chung (1)
  Sukyung Lee (1)
  Hyungseok Yong (1)
  Sangmin Lee (1)
  Yong Tae Park (2)
  
  1. School of Mechanical Engineering, Chung-Ang University, Seoul, 06974, Korea
  2. Department of Mechanical Engineering, Myongji University, Yongin, 17058, Korea
  
• 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
• 出版者：Springer Netherlands
• ISSN：1976-8524

文摘

Super-hydrophobic surfaces having contact angles > 150° for water are of great interest due to their potential use in a wide variety of applications. Although many reports on the wettability of different surfaces have been published, few or no studies have been done on the formation of a super-hydrophobic surface on a ceramic substrate. In this paper, we demonstrate the creation of a super-hydrophobic surface on a ceramic substrate by using zinc oxide nanowires (ZnO NWs) prepared by using a direct hydrothermal method. A self-assembled monolayer of heptadecafluoro- 1,1,2,2-tetrahydrodecyl trichlorosilane (HDFS) lowered the surface energy between the water droplet and the nano-textured surface. The length of the ZnO NWs was found to play a key role in the formation of a nanostructure that increased the surface roughness of the substrate. Furthermore, the length of the ZnO NWs could be controlled by changing the growth time, and HDFS-coated ZnO NWs were found to be super-hydrophobic after a growth time of 3 h. We have demonstrated the potential application of this nanostructure for ceramic tableware by introducing a ZnO-NW-textured surface on a ceramic cup, which resulted in water and alcohol repellency. This method is a simple and practical way to achieve a super-hydrophobic surface; hence, our method is expected to be widely used in various ceramic applications.