Substrates comprising a photocatalytic layer containing TiO
2
are produced using TiO
2
particles which may optionally be doped with metallic or non-metallic elements or compounds. The photocatalytic layer exhibits a concentration gradient of the TiO
2
particles. An organically modified inorganic hybrid layer may be provided between the substrate and the photocatalytic layer.
由含有 TiO
2
的光催化层的基底。
2
颗粒生产而成,这些颗粒可选择掺杂
金属或非
金属元素或化合物。光催化层中的 TiO
2
颗粒的浓度梯度。在基底和光催化层之间可设置有机改性无机杂化层。