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- W2370071161 abstract "The cosensitized effects of TiO2 by various dyes were investigated using photocatalytic water reduction for hydrogen production as a model reaction.The results showed that there was a profound cosensitization effect when Eosin Y(EY) and Rose Bengal(RB) were used as cosensitizer,while the combination of Ru(bipy)3Cl2 either with EY or RB did not show any cosensitization effects for hydrogen production.For EY/RB cosensitized systems,the UV-vis absorption spectra and fluorescence spectrum revealed that the remarkable cosensitization effect in EY/RB systems originated from not only the enhanced light absorption efficiency,but also the effective Frster resonant energy transfer(FRET) between two dyes,which could effectively reduce the energy loss due to the fluorescence quenching of excited state dyes,and enhance the photocatalytic efficiency of hydrogen production.This conclusion was confirmed by the transient photocurrent and monochromic light experiments.Our results also showed that the Ru/EY and Ru/RB cosensitized systems only exhibited photoreactivity for hydrogen production in the presence of methyl viologen(MV2+) as electron transfer relay.Under optimal conditions(λ≥420 nm),the apparent quantum yield(AQY) of hydrogen production for EY/RB cosensitized systems was 36.3% and 215.4% higher than that of single EY and RB sensitized systems,respectively." @default.
- W2370071161 created "2016-06-24" @default.
- W2370071161 creator A5026927839 @default.
- W2370071161 date "2013-01-01" @default.
- W2370071161 modified "2023-09-25" @default.
- W2370071161 title "Cosensitized TiO_2 with Different Dyes for Water Splitting to Hydrogen under Visible Light——Structural Similarity of Dyes and Their Dual Promoting Effect" @default.
- W2370071161 hasPublicationYear "2013" @default.
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