Issue 14, 2014

ortho-Dihydroxyl-9,10-anthraquinone dyes as visible-light sensitizers that exhibit a high turnover number for hydrogen evolution

Abstract

Pt/TiO2 sensitized by the cheap and organic ortho-dihydroxyl-9,10-anthraquinone dyes, such as Alizarin and Alizarin Red, achieved a TON of approximately 10 000 (TOF > 250 h−1 for the first ten hours) during >80 hours of visible light irradiation (>420 nm) for photocatalytic hydrogen evolution when triethanolamine was used as the sacrificial donor. The stability and activity enhancements can be attributed to the two highly serviceable redox reactions involving the 9,10-dicarbonyl and ortho-dihydroxyl groups of the anthracene ring, respectively.

Graphical abstract: ortho-Dihydroxyl-9,10-anthraquinone dyes as visible-light sensitizers that exhibit a high turnover number for hydrogen evolution

Supplementary files

Article information

Article type
Communication
Submitted
12 Feb 2014
Accepted
12 Feb 2014
First published
14 Feb 2014

Phys. Chem. Chem. Phys., 2014,16, 6550-6554

Author version available

ortho-Dihydroxyl-9,10-anthraquinone dyes as visible-light sensitizers that exhibit a high turnover number for hydrogen evolution

Q. Li, Y. Che, H. Ji, C. Chen, H. Zhu, W. Ma and J. Zhao, Phys. Chem. Chem. Phys., 2014, 16, 6550 DOI: 10.1039/C4CP00626G

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