Sun, Y;
Sun, Y;
Meng, X;
Gao, Y;
Dall'Agnese, Y;
Chen, G;
Dall'Agnese, C;
(2019)
Eosin Y-sensitized partially oxidized Ti₃C₂, MXene for photocatalytic hydrogen evolution.
Catalysis Science & Technology
, 9
(2)
pp. 310-315.
10.1039/c8cy02240b.
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Abstract
Ti₃C₂, though one of the most extensively studied 2D MXenes, is rarely reported in dye-sensitized photocatalysis. Platinum is commonly used as a co-catalyst in photocatalytic hydrogen evolution but it increases the cost and hence restricts the commercialization of this technology. Eosin Y (EY) is widely studied in dye-sensitized systems as it is not only low-cost and easily commercially available, but also exhibits excellent visible light absorption ability. Herein, we oxidized Ti₃C₂ MXene in water at 60 °C for different times, to form TiO₂/Ti₃C₂ on amorphous carbon (AC) composites. The oxidized MXene was used as a photocatalyst in a dye-sensitized system for hydrogen evolution to replace noble metal co-catalysts such as Pt. The highest hydrogen production rate of 33.4 μmol h⁻¹ g⁻¹ was achieved by the TiO₂/Ti₃C₂ @AC-48h composite with the sensitization of 1 mM EY, which was 110 times higher than that of oxidized Ti₃C₂ without EY. This work shows the potential of 2D MXenes used in dye-sensitized photocatalysis for hydrogen evolution.
Type: | Article |
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Title: | Eosin Y-sensitized partially oxidized Ti₃C₂, MXene for photocatalytic hydrogen evolution |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1039/c8cy02240b |
Publisher version: | http://dx.doi.org/10.1039/c8cy02240b |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
URI: | https://discovery.ucl.ac.uk/id/eprint/10068236 |
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