Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 17, Pages 6827-6831Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201914565
Keywords
electronic modulation; photocatalysis; polymeric carbon nitride; single-atom catalysts; transition metals
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Funding
- National Key R&D Program of China [2017YFE0127400]
- National Natural Science Foundation of China [51872317, 21835007, 21773288]
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The emerging metal single-atom catalyst has aroused extensive attention in multiple fields, such as clean energy, environmental protection, and biomedicine. Unfortunately, though it has been shown to be highly active, the origins of the activity of the single-atom sites remain unrevealed to date owing to the lack of deep insight on electronic level. Now, partially oxidized Ni single-atom sites were constructed in polymeric carbon nitride (CN), which elevates the photocatalytic performance by over 30-fold. The 3d orbital of the partially oxidized Ni single-atom sites is filled with unpaired d-electrons, which are ready to be excited under irradiation. Such an electron configuration results in elevated light response, conductivity, charge separation, and mobility of the photocatalyst concurrently, thus largely augmenting the photocatalytic performance.
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