Organic dye-sensitized TiO2 for the redox conversion of water pollutants under visible light
作者:Yiseul Park、Su-Hyun Lee、Sang Ook Kang、Wonyong Choi
DOI:10.1039/b924829c
日期:——
Titania nanoparticles sensitized with metal-free organic dye exhibit high visible-light activities for the redox conversion of water pollutants in a wider pH range in comparison with TiO2 sensitized with ruthenium bipyridyl complexes.
Significance of Hydrophilic Characters of Organic Dyes in Visible-Light Hydrogen Generation Based on TiO<sub>2</sub>
作者:Su-Hyun Lee、Yiseul Park、Kyung-Ryang Wee、Ho-Jin Son、Dae Won Cho、Chyongjin Pac、Wonyong Choi、Sang Ook Kang
DOI:10.1021/ol9026182
日期:2010.2.5
A series of dyes were synthesized to examine the roles of the hydrophilic characteristics of R in sensitized hydrogen generation by dyegrafted Pt/TiO2 under visible light irradiation. The hydrogen-generation efficiencies and optimum amounts of the dyes grafted to Pt/TiO2 were affected substantially by the hydrophilic and steric effects of R; moderately hydrophilic DEO1 and DEO2 showed higher sensitization activity at a lower loading than hydrophobic D-H.