Stable Biomimetic Super-Hydrophobic Copper Surface Fabricated by a Simple Wet-Chemical Method

Abstract

Superhydrophobic copper foil surface was fabricated by a simple wet-chemical etching and self-assemble method. We discussed the effect of surface structure on fabricating superhydrophobic surface. Scanning electron microscopy (SEM) and x-ray photoelectron spectroscopy (XPS) have been used to investigate the as-prepared surface. The result shows that the surface roughness is crucial to creating a superhydrophobic surface.

Keywords:

• Self-assemble
• superhydrophobic
• surface roughness
• wet-chemical etching

Acknowledgments

The authors acknowledge the financial support of the National 973 Project of China (Grant No. 2007CB607601) and the National Science Foundation of China (Grant No. 50835009 and Grant No. 50421502).