A dye-sensitized visible light photocatalyst-Bi24 O31 Cl10

Wang, Liang, Shang, Jun, Hao, Weichang, Jiang, Shiqi, Huang, Shiheng, Wang, Tianmin, Sun, Ziqi, Du, Yi, Dou, Shixue, Xie, Tengfeng, Wang, Dejun, & Wang, Jiaou (2014) A dye-sensitized visible light photocatalyst-Bi24 O31 Cl10. Scientific Reports, 4, Article number- 7384.

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The p-block semiconductors are regarded as a new family of visible-light photocatalysts because of their dispersive and anisotropic band structures as well as high chemical stability. The bismuth oxide halides belong to this family and have band structures and dispersion relations that can be engineered by modulating the stoichiometry of the halogen elements. Herein, we have developed a new visible-light photocatalyst Bi 24 O 31 Cl 10 by band engineering, which shows high dye-sensitized photocatalytic activity. Density functional theory calculations reveal that the p-block elements determine the nature of the dispersive electronic structures and narrow band gap in Bi 24 O 31 Cl 10. Bi 24 O 31 Cl 10 exhibits excellent visible-light photocatalytic activity towards the degradation of Rhodamine B, which is promoted by dye sensitization due to compatible energy levels and high electronic mobility. In addition, Bi 24 O 31 Cl 10 is also a suitable photoanode material for dye-sensitized solar cells and shows power conversion efficiency of 1.5%.

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ID Code: 94593
Item Type: Journal Article
Refereed: Yes
DOI: 10.1038/srep07384
ISSN: 2045-2322
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 The Author(s)
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Deposited On: 08 Apr 2016 05:40
Last Modified: 14 Apr 2016 04:57

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