Substrates comprising a photocatalytic TiO2 layer

US7449245B2 · kind B2 · utility

Assignee

• Leibniz-Institut für Neue Materialien gemeinnützige GmbH · DE

Inventors

• Murat Akarsu · Riegelsberg, DE
• Ertugrul Arpac · Antalya, TR
• Helmut Schmidt · Riegelsberg, DE

Key dates

• Filing date: Jan 7, 2005
• Grant date: Nov 11, 2008
• Expiry date: Aug 25, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/252
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Substrates comprising a photocatalytic layer containing TiO2 are produced using TiO2 particles which may optionally be doped with metallic or non-metallic elements or compounds. The photocatalytic layer exhibits a concentration gradient of the TiO2 particles. An organically modified inorganic hybrid layer may be provided between the substrate and the photocatalytic layer.