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- W2604913570 abstract "Abstract Uniform doping is usually recognized as an efficient method for enhancing photocatalysis of TiO 2 , while non-uniform doping is generally supposed to be inefficient because of the inhomogeneous dispersion of dopants. However, in this study, we present the first example of non-uniform doping (with Au)-better enhanced photocatalysis of TiO 2 nanotubes, as compared to uniform doping, in terms of the photocatalytic organic dye degradation. The extent to which the non-uniform doping (achieved by liquid phase deposition (LPD)) can enhance photocatalysis is evaluated, along with a comparison with uniform doping. There exists an additional positive effect in the non-uniform doping system, that is, as generated interfaces between pure phase TiO 2 and Au-doped TiO 2 , in contrast to the uniform doping system leading to a positive “platinum island” effect. Such double beneficial effects contribute to the highest performance in the photocatalytic organic dye degradation for the Au-non-uniformly doped TiO 2 nanotubes as compared to other samples involved in this study. Both the “platinum island” and interfacial separation effects are helpful to isolate the photo-generated electrons and holes, resulting in enhanced photocatalytic activities." @default.
- W2604913570 created "2017-04-14" @default.
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- W2604913570 date "2017-08-01" @default.
- W2604913570 modified "2023-09-23" @default.
- W2604913570 title "Non-uniform doping outperforms uniform doping for enhancing the photocatalytic efficiency of Au-doped TiO 2 nanotubes in organic dye degradation" @default.
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- W2604913570 doi "https://doi.org/10.1016/j.ceramint.2017.04.050" @default.
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