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Reversible and cooperative photoactivation of single-atom Cu/TiO2 photocatalysts
Cited 455 time in
Web of Science
Cited 477 time in Scopus
- Authors
- Issue Date
- 2019-06
- Publisher
- Nature Publishing Group
- Citation
- Nature Materials, Vol.18 No.6, pp.620-626
- Abstract
- The reversible and cooperative activation process, which includes electron transfer from surrounding redox mediators, the reversible valence change of cofactors and macroscopic functional/structural change, is one of the most important characteristics of biological enzymes, and has frequently been used in the design of homogeneous catalysts. However, there are virtually no reports on industrially important heterogeneous catalysts with these enzyme-like characteristics. Here, we report on the design and synthesis of highly active TiO2 photocatalysts incorporating site-specific single copper atoms (Cu/TiO2) that exhibit a reversible and cooperative photoactivation process. Our atomic-level design and synthetic strategy provide a platform that facilitates valence control of co-catalyst copper atoms, reversible modulation of the macroscopic optoelectronic properties of TiO2 and enhancement of photocatalytic hydrogen generation activity, extending the boundaries of conventional heterogeneous catalysts.
- ISSN
- 1476-1122
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