Selective photocatalytic N₂ fixation dependent on g-C₃N₄ induced by nitrogen vacancies

Guohui DONG, Wing Kei HO, Chuanyi WANG

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132 Citations (Scopus)

Abstract

Photoreduction of N₂ is among the most interesting and challenging methods for N₂ fixation under mild conditions. In this study, we determined that nitrogen vacancies (NVs) could endow graphitic carbon nitride (g-C₃N₄) with the photocatalytic N₂ fixation ability. Photocatalytic N₂ fixation induced by NVs is free from the interference of other gases. The reason is that NVs could selectively adsorb and activate N₂ because NVs have the same shape and size as the nitrogen atom in N₂. In addition to this, NVs could also improve many other properties of g-C₃N₄ to support photocatalytic N₂ fixation. These new findings could elucidate the design of efficient photocatalysts for photocatalytic N₂ fixation. Copyright © 2015 The Royal Society of Chemistry.
Original languageEnglish
Pages (from-to)23435-23441
JournalJournal of Materials Chemistry A
Volume3
Issue number46
Early online dateOct 2015
DOIs
Publication statusPublished - 2015

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Nitrogen fixation
Carbon nitride
Vacancies
Nitrogen
Photocatalysts
cyanogen
Gases
Atoms

Bibliographical note

Dong, G., Ho, W., & Wang, C. (2015). Selective photocatalytic N₂ fixation dependent on g-C₃N₄ induced by nitrogen vacancies. Journal of Materials Chemistry A, 3(46), 23435-23441.