Journal
ACS ENERGY LETTERS
Volume 3, Issue 1, Pages 85-91Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.7b00896
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- University of Milano-Bicocca
- University of Trieste
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Dye-sensitized photocatalytic H-2 generation has been investigated using a metal-free phenothiazine-based donor acceptor sensitizer (PTZ-GLU) in combination with coadsorbents. The coadsorption of the PTZ-GLU dye, functionalized with a glucose end-group, in combination with a glucose-based coadsorbent, afforded improved photocatalytic activity compared to the absence of coadsorbents, to the use of a conventional (chenodeoxycholic acid) coadsorbent, or by replacing the dye glucose functionality with an alkyl chain. The results suggest the strategic role of directional intermolecular dye coadsorbent interactions on the semiconductor surface, as confirmed by first principles computational modeling, which likely suppressed detrimental recombination processes.
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