Substrates comprising a photocatalytic TiO2 layer

  • US 20050191505A1
  • Filed: 01/07/2005
  • Published: 09/01/2005
  • Est. Priority Date: 07/09/2002
  • Status: Active Grant
First Claim
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1. A substrate comprising a photocatalytic layer, wherein the photocatalytic layer comprises photocatalytically active TiO2 and a matrix material and the TiO2 exhibits a concentration gradient in the matrix material such that the TiO2 is enriched at a surface of the photocatalytic layer.

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