Reevaluating Self-Cleaning Performance of Nanostructured Superhydrophobic Coatings

into submicrometer pores, causing an irreversible and significant decline of superhydrophobicity. An eight month outdoor exposure test further confirms that the nano-SH coating resists complex atmospheric fouling, maintains nanostructural integrity, and preserves high superhydrophobicity. Overall, this work bridges laboratory evaluations with real-world conditions and provides a mechanistic framework for designing durable superhydrophobic coatings capable of long-term self-cleaning in complex environments.