Enhanced Photocatalytic Activity of BiOBrZnO Heterojunction Semiconductors Prepared by Facile Hydrothermal Method
Joint Authors
Zhang, Zisheng
Meng, Xiangchao
Jiang, Lingyun
Wang, Weiwen
Source
International Journal of Photoenergy
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-13
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Hexagonal wurtzite pure ZnO and BiOBr-ZnO composites were synthesized by facile hydrothermal method.
The amount of BiOBr as dopant was adjusted from 5 wt.% to 75 wt.%, and correspondingly the morphologies and crystal structures of the as-prepared composites were measured and discussed.
Specifically, according to XRD patterns and SEM images, the main crystalline structure of ZnO was not destroyed after doping, but growth of ZnO crystals was inhibited by doping BiOBr.
Meanwhile, the optical properties of the composites were measured by the diffuse reflectance spectra (DRS).
The band gap of composites was also calculated using the classical Tauc equation and it was found to be around 3.0 eV.
In the test of photocatalytic activation, the ZnO-BiOBr photocatalysts exhibited high photocatalytic efficiencies in the degradation of Rhodamine B (RhB) under visible-light irradiation.
It was ascribed to not only the small size of crystalline, but also the reduction in the recombination rate of the photogenerated carriers for the enhancement effect of p-n heterojunction.
This work sheds light on improving the photocatalytic performance by establishing the heterojunction and contributes to the development of a commercially competitive photocatalyst.
American Psychological Association (APA)
Meng, Xiangchao& Jiang, Lingyun& Wang, Weiwen& Zhang, Zisheng. 2015. Enhanced Photocatalytic Activity of BiOBrZnO Heterojunction Semiconductors Prepared by Facile Hydrothermal Method. International Journal of Photoenergy،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1066593
Modern Language Association (MLA)
Meng, Xiangchao…[et al.]. Enhanced Photocatalytic Activity of BiOBrZnO Heterojunction Semiconductors Prepared by Facile Hydrothermal Method. International Journal of Photoenergy No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1066593
American Medical Association (AMA)
Meng, Xiangchao& Jiang, Lingyun& Wang, Weiwen& Zhang, Zisheng. Enhanced Photocatalytic Activity of BiOBrZnO Heterojunction Semiconductors Prepared by Facile Hydrothermal Method. International Journal of Photoenergy. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1066593
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066593