To prevent corrosion of pure aluminum in the environment, one can apply protective coatings such as paints or anodizing, which forms a dense oxide layer on the surface. Additionally, using aluminum alloys that contain elements like copper, magnesium, and silicon can enhance resistance to corrosion. Regular cleaning and maintenance to remove contaminants that may initiate corrosion are also important. In extreme environments, cathodic protection or the use of inhibitors can be employed to further protect aluminum from corrosion.