Application of Nano Technology in the Self-Cleaning Finishing of Textiles: A Review

Production of self-cleaning surfaces is possible with two methods of super hydrophobicity and photocatalytic decomposition of pollution. The basis of photocatalytic self-cleaning is the chemical decomposition of polluting substances using the photo-oxidation/reduction reaction due to incident radiation. Titanium dioxide or Titania is one of the most widely used materials in this field. The photocatalytic effect can lead to the destruction of organic compounds in the cell wall of bacteria and molecules of odor-causing compounds. Therefore, as a result of finishing with photocatalysts, in addition to the self-cleaning property, properties such as antimicrobial and antiodor properties are also created in the surfaces. If the surfaces completed with titanium dioxide are exposed to light radiation, yellowing due to light and optical decomposition of the surface will also be prevented. In recent years, a lot of research has been done on self-cleaning textiles. This property, inspired by the characteristics of some plants and animals, has provided a new field in the production of high-performance textiles. There are two main approaches for the production of these textiles, in this session, the creation of surface roughness is discussed to create super-water-repellent and self-cleaning textiles.