Substrates comprising a photocatalytic TiO2 layer
First Claim
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1. A substrate having a photocatalytic layer thereon, wherein the photocatalytic layer comprises photocatalytically active TiO2 particles having an average particle size of ≦
- 200 nm and a matrix material and wherein the TiO2 particles exhibit a concentration gradient in the matrix material such that the TiO2 particles are enriched at a surface of the photocatalytic layer.
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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.
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Citations
42 Claims
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1. A substrate having a photocatalytic layer thereon, wherein the photocatalytic layer comprises photocatalytically active TiO2 particles having an average particle size of ≦
- 200 nm and a matrix material and wherein the TiO2 particles exhibit a concentration gradient in the matrix material such that the TiO2 particles are enriched at a surface of the photocatalytic layer.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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