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- W2080584429 abstract "Abstract A dye-sensitized CuO incorporated TiO 2 catalyst was found to be an active photocatalyst for the photocatalytic hydrogen production from water under visible light (> 420 nm) irradiation in the presence of electron donors such as triethanolamine, acetonitrile and triethylamine. The stronger adsorption of eosin Y on the CuO incorporated TiO 2 catalyst by multidentate complexation than on pure TiO 2 was proved by the method of spectrophotometry, namely, the addition of CuO strongly improved the adsorption capability of TiO 2 toward eosin dye and this effect led to a high quantum efficiency of eosin-sensitized CuO/TiO 2 for photocatalytic water splitting. The electrons excited from the sensitizer molecules which were strongly adsorbed both on TiO 2 and CuO by the visible light injected into the conduction band (CB) of both TiO 2 and CuO, the electrons in CB of TiO 2 subsequently transferred to CB of CuO, which resulted in a build-up of excess electrons in the conduction band of CuO. Consequently, the accumulation of excess electrons in CuO causes a negative shift in the Fermi level of CuO. As a result of that, the significant enhancement of apparent quantum yield (∼5.1%) and a good stability was obtained over the dye-sensitized 1.0 wt% CuO/TiO 2 photocatalyst." @default.
- W2080584429 created "2016-06-24" @default.
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- W2080584429 date "2007-08-01" @default.
- W2080584429 modified "2023-09-23" @default.
- W2080584429 title "5.1% Apparent quantum efficiency for stable hydrogen generation over eosin-sensitized CuO/TiO2 photocatalyst under visible light irradiation" @default.
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- W2080584429 doi "https://doi.org/10.1016/j.catcom.2006.11.019" @default.
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