Subphthalocyanine-sensitized TiO2 photocatalyst for photoelectrochemical and photocatalytic hydrogen evolution

A series of SubPcs comprising a carboxylic acid anchoring group at the peripheral (SubPcs 1, 2) or axial position (SubPc 3) were synthesized and used as sensitizers for photocatalytic H2 production, for the first time. SubPc 3/TiO2 shows the best photocatalytic activity with a hydrogen evolution rat...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2020-09, Vol.49 (36), p.12550-12554
Main Authors: Yüzer, A Celil, Genc, Eminegül, Harputlu, Ersan, Yanalak, Gizem, Aslan, Emre, Ocakoglu, Kasim, Patir, Imren Hatay, Ince, Mine
Format: Article
Language:English
Subjects:
Anchoring
Carboxylic acids
Catalytic activity
Hydrogen evolution
Hydrogen production
Optical properties
Photocatalysis
Titanium dioxide
Water splitting
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Summary:A series of SubPcs comprising a carboxylic acid anchoring group at the peripheral (SubPcs 1, 2) or axial position (SubPc 3) were synthesized and used as sensitizers for photocatalytic H2 production, for the first time. SubPc 3/TiO2 shows the best photocatalytic activity with a hydrogen evolution rate of 1396 μmol h−1, which is much higher than that of SubPcs 1 and 2 (771 and 658 μmol g−1, respectively). This work clearly shows that considering their optical and redox properties, SubPcs are promising candidates for light-driven water splitting systems.
ISSN:1477-9226
1477-9234
DOI:10.1039/d0dt02565h