• • Achieved superhydrophobicity with a water contact angle of 153°, reducing water adhesion and delaying icing by ~23× compared to bare AZ31B Mg alloy, critical for anti-icing in aerospace.
• • Corrosion current density reduced to 1.294 × 10⁻⁹ A·cm⁻², four orders of magnitude lower than bare Mg alloy, via synergistic passive barrier and active La inhibitor release, extending service life.
• • Solar absorption ~80% and photothermal surface temperature of 61 °C under 1.0 sun, enabling passive solar anti-icing by preventing supercooled droplet accumulation.
• • Fast self-healing rate of ~0.34 cm·s⁻¹ under NIR irradiation, recovering anti-corrosion and anti-icing functions after physical damage, reducing maintenance downtime.