The dendritic Bi/Bi₂O₃/ZnO superhydrophobic surface (SHPS) was facilely obtained on zinc substrate via etching in 0.5 mol·L⁻¹ HCl solution for 2 min, immersing in 2 mmol·L⁻¹ Bi(NO₃)₃/0.1 mol·L⁻¹ HNO₃ solution for 2.5 min and annealing treatment at 180 °C for 2 h. The wetting property results demonstrated that the superhydrophobic sample had excellent water-repellency with a static water contact angle of ~160° and sliding angle of ~0° under the optimum condition, which can be visually confirmed by the impacting droplet could rebound back immediately and roll off the horizontally placed sample. Moreover, it exhibited remarkable self-cleaning ability, buoyancy, desired stability in long-term storage in air, corrosion resistance in 3.5 wt% NaCl solution, ice-over delay at −16 °C and durability in lab-simulated abrasion test.

通过在0.5mol·L ^-1 HCl溶液中腐蚀2 min，并浸入2mmol·L ^-1 Bi（NO ₃）_3中，在锌基板上轻松获得树枝状Bi / Bi ₂ O ₃ / ZnO超疏水表面（SHPS）。/0.1莫尔^-1 HNO ₃溶液2.5分钟，并在180°C下退火2小时。润湿性能结果表明，在最佳条件下，超疏水性样品具有优异的疏水性，静态水接触角为〜160°，滑动角为〜0°，这可以通过目测证实，受冲击的液滴可以立即回弹，并且滚下水平放置的样品。此外，它还具有出色的自清洁能力，浮力，在空气中长期储存所需的稳定性，在3.5 wt％NaCl溶液中的耐腐蚀性，在-16°C下的覆冰延迟以及在实验室模拟的磨损试验中的耐久性。