Nanotechnology Now - Press Release: New Economic Method Developed for Production of Photocatalytic Coatings

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Abstract:
Iranian researchers at Tarbiat Modarres University and Sharif University of Technology succeeded in the production of nanostructured titanium oxide coatings for photocatalytic applications through an economical method.

New Economic Method Developed for Production of Photocatalytic Coatings

Tehran, Iran | Posted on July 23rd, 2012

Nanostructured titanium oxide coatings were synthesized through electrophoretic deposition method which is a very cost-effect, simple, and applicable method. Studying the electrophoretic deposition process mechanism by using various solvents and selecting an appropriate solvent in order to create the coating was among other objectives of the research.

According to the researchers, one of the most important innovations of the research was to benefit from the effect of solvent type in the formation of suspension on the electrophoretic deposition process and on the coating properties.

Studies showed that the microstructures of nanostructured titanium oxide coatings made of butanolic suspensions that contained the optimum concentration of triethanolamine had the highest quality and were the most homogenous microstructure, and they resulted in high photocatalytic efficiency. Also about the electrophoretic deposition process it was found out that the additive could very much affect the stability of the suspension and electrical resistance of the deposit, and consequently, it could affect the rate of coating formation during the process and the microstructure of the coating as well.

Further investigations on the mechanisms of electrophoretic deposition process have been and are still being carried out by Eng. Farrokhirad and Dr. Taqi Shahrabi from Tarbiat Modarres University. They have observed interesting phenomena in regard with the mechanism and kinetic of electrophoretic deposition method.

The result of the research has been published in American Ceramic Society.

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