Self-cleaning behavior refers to the ability of a solid surface to remove contaminants under natural circumstances. This may be reached by two approaches. The former one is to achieve hydrophilic surfaces (water contact angle WCA<90°) on which water forms sheets, washing away impurities; the latter is to realize hydrophobic structures (WCA>90°), causing droplets to form and roll over the surface quickly.
Citation: Garlisi C, Scandura G, Alabi A, Aderemi O, Palmisano G (2015) Self-Cleaning Coatings Activated by Solar and Visible Radiation. J Adv Chem Eng 5:e103. doi: 10.4172/2090-4568.1000e103