ZrO₂ Superhydrophobic Coating with an Excellent Corrosion Resistance and Stable Degradation Performance on Zr-Based...

Photocatalysis is an energy-saving and high-efficiency green environmental technology. Because of its wide band gap and low light utilization, few studies have been conducted on ZrO₂ used as a photocatalytic material. In this paper, a corrosion-resistant superhydrophobic ZrO₂ coating was prepared on the surface of Zr-based bulk metallic glass by electrochemical etching. This coating not only showed a better corrosion resistance and easier collection, but also presented a stable degradation performance when combined with H₂O₂; these characteristics are necessary for photocatalysts to survive under harsh environments. This study provides a new direction for designing superhydrophobic surfaces on bulk metallic glass that possess a functional performance.