Self-cleaning coatings, photocatalytic

BASIC PRINCIPLE OF PHOTOCATALYTIC SELF-CLEANING COATINGS Photocatalytic Decomposition of Surface Stains or Bacteria... 

Polycarbonate sheet Magnetron sputtering and a chemical surface treatment methods Development of Ti02 self cleaning coatings for photocatalytic degradation of methylene blue and rhodamine-B [586, 587]... 

Titanium dioxide (Ti02) is a typical n-type semiconductor that has been widely used in industry due to its unique and various properties such as its antibacterial properties, its stability, its super hydrophilic behavior under radiation, and its photocatalytic properties [55]. This material is found in applications such as photovoltaic cells with dye-sensitized solar cells (DSSCs), sensors, self-cleaning coatings, painting, and air and water depollution (heterogeneous catalysis). 

Photocatalytic titanium dioxide coatings can be selfcleaning, converting organic materials, such as bacteria and dirt, to carbon dioxide at practical rates at room temperature.219 This offers the possibility of self-cleaning buildings and windows. 

J.O. Carneiro, V. Teixeira, A. Portinha, A. Magalhaes, P. Coutinho, C.J. Tavares, R. Newton, Iron-doped photocatalytic Ti02 sputtered coatings on plastics for self-cleaning applications . Materials Science and Engineering B, 138, 144-150, (2007). 

Photocatalytic membranes incorporating titanium dioxide (Ti02) improve the self-cleaning performance and reduce streaking of tensile surface structures. In the case of PTFE T1O2 coated membranes, the surface has also been proven to remove exhaust pollutants from the atmosphere, effectively cleaning pollution from the urban environment (Mak Max, 2009b). 

Yaghoubi, H., Taghavinia, N., and Alamdari, E.K. (2010) Self cleaning Ti02 coating on polycarbonate surface treatment, photocatalytic and nanomechanical properties. Suif. Coat. Technol,... 

Self-cleaning photocatalytic coating materials such as transparent polyesters and acrylic films, on the other hand, have not yet shown their full-fledged potential, even though they... 

This chapter describes the coating method, the evaluation technique and the selfcleaning performance of the photocatalytic cleaning glass (self-cleaning glass) commercially produced by the sol-gel technology. 

---