Substrate with photocatalytic coating
First Claim
1. A substrate having on at least part of at least one face a coating having photocatalytic properties, wherein the coating consists essentially of photocatalytic titanium oxide and a mineral binder, wherein the mineral binder comprises at least one semiconducting metal oxide, wherein the mineral binder has substantially no photocatalytic activity and wherein at least one of the semiconducting metal oxide(s) is doped.
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Abstract
The subject of the invention is a substrate provided on at least part of at least one of its faces with a coating having photocatalytic properties, containing photocatalytic titanium oxide, especially crystallized in the anatase form, in an essentially mineral binder comprising at least one semiconducting metal oxide.
The subject of the invention is also a process for obtaining said substrate, especially by thermal decomposition of precursors or by a vacuum deposition technique.
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30 Claims
- 1. A substrate having on at least part of at least one face a coating having photocatalytic properties, wherein the coating consists essentially of photocatalytic titanium oxide and a mineral binder, wherein the mineral binder comprises at least one semiconducting metal oxide, wherein the mineral binder has substantially no photocatalytic activity and wherein at least one of the semiconducting metal oxide(s) is doped.
Specification