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Preparation of BiVO 4-Graphene Nanocomposites and Their Photocatalytic Activity
Joint Authors
Ji, Fangying
Xu, Xuan
Zou, Qiulin
Yuan, Yunsong
Fan, Zihong
Zhou, Bi
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-12
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
We prepared BiVO4-graphene nanocomposites by using a facile single-step method and characterized the material by x-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, ultraviolet-visible diffuse-reflection spectroscopy, and three-dimensional fluorescence spectroscopy.
The results show that graphene oxide in the catalyst was thoroughly reduced.
The BiVO4 is densely dispersed on the graphene sheets, which facilitates the transport of electrons photogenerated in BiVO4, thereby leading to an efficient separation of photogenerated carriers in the coupled graphene-nanocomposite system.
For degradation of rhodamine B dye under visible-light irradiation, the photocatalytic activity of the synthesized nanocomposites was over ∼20% faster than for pure BiVO4 catalyst.
To study the contribution of electrons and holes in the degradation reaction, silver nitrate and potassium sodium tartrate were added to the BiVO4-graphene photocatalytic reaction system as electron-trapping agent and hole-trapping agent, respectively.
The results show that holes play the main role in the degradation of rhodamine B.
American Psychological Association (APA)
Xu, Xuan& Zou, Qiulin& Yuan, Yunsong& Ji, Fangying& Fan, Zihong& Zhou, Bi. 2014. Preparation of BiVO 4-Graphene Nanocomposites and Their Photocatalytic Activity. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1041499
Modern Language Association (MLA)
Xu, Xuan…[et al.]. Preparation of BiVO 4-Graphene Nanocomposites and Their Photocatalytic Activity. Journal of Nanomaterials No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1041499
American Medical Association (AMA)
Xu, Xuan& Zou, Qiulin& Yuan, Yunsong& Ji, Fangying& Fan, Zihong& Zhou, Bi. Preparation of BiVO 4-Graphene Nanocomposites and Their Photocatalytic Activity. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1041499
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041499