| abstract |
A surface treatment material useful in producing a coating for application to a mediator surface to inhibit the growth of microorganisms, particularly bacteria, comprises a metal oxide catalyst together with a metal dopant that acts as an upconversion luminescent agent. Photocatalytic components such as ErCl 3 / TiO 2 , Er (NO 3 ) 3 / TiO 2 , NdCl 3 / TiO 2 , Nd (NO 3 ) 3 / TiO 2 , GdCl 3 / TiO 2 , Gd (NO 3 ) 3 / based on TiO 2 (and optionally other metals, especially including transition metals such as silver) a photocatalytic component, provide antimicrobial activity in the dark, and when exposed to wavelengths in the range of 350~790nm Increases antibacterial activity and can therefore be used in the healthcare, leisure and food industries. [Selection] Figure 8b |