Synthesis of High-Temperature TiO2 and Its Application on Ag+-Activated Ceramic Tile

Abstract

The main purpose of study was to provide a common synergy using Ag+-doped calcium phosphate powder and high-temperature-stable TiO<inf>2</inf> for antibacterial and photocatalytic tile applications. Thermally stable SiO<inf>2</inf>-modified TiO<inf>2</inf> active layer was deposited on Ag+-activated ceramic tiles by spray coating. The results showed that a nearly 100% cleanability degree was detected for SiO<inf>2</inf>-modified TiO<inf>2</inf> (TS)-coated antibacterial tiles when compared uncoated and unmodified TiO<inf>2</inf>-coated tiles. Antibacterial tests and colorimetric analyses indicated that ceramic tiles provide both antibacterial and photocatalytic properties simultaneously. © 2013 The American Ceramic Society.