Activation of photocatalytic water oxidation on N-doped ZnO bundle-like nanoparticles under visible light
Article
Article Title | Activation of photocatalytic water oxidation on N-doped ZnO bundle-like nanoparticles under visible light |
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ERA Journal ID | 35015 |
Article Category | Article |
Authors | Zong, Xu (Author), Sun, Chenghua (Author), Yu, Hua (Author), Chen, Zhi Gang (Author), Xing, Zheng (Author), Ye, Delai (Author), Lu, Gao Qing (Max) (Author), Li, Xinyong (Author) and Wang, Lianzhou (Author) |
Journal Title | The Journal of Physical Chemistry C: Energy, Materials, and Catalysis |
The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter | |
Journal Citation | 117 (10), pp. 4937-4942 |
Number of Pages | 6 |
Year | 2013 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 1932-7447 |
1932-7455 | |
1932-7455 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/jp311729b |
Web Address (URL) | http://pubs.acs.org/doi/pdf/10.1021/jp311729b |
Abstract | Nitrogen-doped ZnO bundle-like nanoparticles were prepared by heating ZnOHF precursor at different temperatures under an ammonia atmosphere. ZnOHF gradually transformed to N-ZnO with the increase of the heating temperature, and the as-prepared N-ZnO nanoparticles preserved the original morphologies of ZnOHF at moderate heating temperature. The N-ZnO nanoparticles demonstrated drastically enhanced absorption in the visible region compared with the commercial ZnO and N-ZnO derived from commercial ZnO. Theoretical calculations indicated that the contribution of nitrogen to the top of the valence band (VB) of ZnO plays the major role of extending the absorption of ZnO to the visible region. The as-prepared N-ZnO showed high photocatalytic activity for the visible-light-induced water oxidation, and the activity can be further greatly enhanced by loading IrO2 cocatalyst. To our knowledge, this is the first report of realizing photocatalytic water oxidation on non-metal-doped ZnO under visible light without applied bias, thus adding new value to the band gap engineering of benchmark ZnO for efficient solar energy utilization. |
Keywords | ammonia atmosphere; band gap engineering; enhanced absorption; heating temperatures; high photocatalytic activities; photo-catalytic; theoretical calculations; water oxidation; inorganic compounds; chemical reactions; chemistry; nanotechnology; naval vessels; energy utilization; atmospheric properties |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Dalian University of Technology, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q417x/activation-of-photocatalytic-water-oxidation-on-n-doped-zno-bundle-like-nanoparticles-under-visible-light
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