Activation of photocatalytic water oxidation on N-doped ZnO bundle-like nanoparticles under visible light

Zong, Xu, Sun, Chenghua, Yu, Hua, Chen, Zhi Gang, Xing, Zheng, Ye, Delai, Lu, Gao Qing (Max), Li, Xinyong and Wang, Lianzhou (2013) Activation of photocatalytic water oxidation on N-doped ZnO bundle-like nanoparticles under visible light. Journal of Physical Chemistry C, 117 10: 4937-4942. doi:10.1021/jp311729b


Author Zong, Xu
Sun, Chenghua
Yu, Hua
Chen, Zhi Gang
Xing, Zheng
Ye, Delai
Lu, Gao Qing (Max)
Li, Xinyong
Wang, Lianzhou
Title Activation of photocatalytic water oxidation on N-doped ZnO bundle-like nanoparticles under visible light
Journal name Journal of Physical Chemistry C   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2013-03
Sub-type Article (original research)
DOI 10.1021/jp311729b
Volume 117
Issue 10
Start page 4937
End page 4942
Total pages 6
Place of publication Washington, DC, United States
Publisher American Chemical Society
Collection year 2014
Language eng
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.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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