Titanium building materials with titanium dioxide nanotube array structure have the functions of purifying gas and degrading warm water. It plays a powerful role in alleviating smog, degrading formaldehyde and reducing greenhouse gases. Titanium dioxide, a compact film on titanium surface, is also the most typical photocatalyst material in in addition to formaldehyde, which can effectively delay the growth of harmful substances. Information about titanium dioxide in addition to formaldehyde-Reference: Journal of Environmental Science 20 13(06) Titanium oxide on titanium surface reacts with water and oxygen in the air to generate two kinds of active oxygen with strong decomposition. The treated titanium plate has strong greenhouse gas adsorption capacity, and 1㎡ is equivalent to the purification effect of1.6m2 lawn.
After anodic oxidation of titanium, a transparent oxide film with a thickness of several hundred nanometers to several thousand nanometers will be formed on the surface. Due to the interference of light, color will appear. According to the thickness of the oxide film, it will present unique colors such as aluminum and stainless steel that are difficult to obtain.