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Double Walled Carbon NanotubeTiO2 Nanocomposites for Photocatalytic Dye Degradation
Joint Authors
Mamba, Bhekie B.
Kuvarega, Alex T.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-25
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Double walled carbon nanotube (DWCNT)/N,Pd codoped TiO2 nanocomposites were prepared by a modified sol-gel method and characterised using FTIR, Raman spectroscopy, TGA, DRUV-Vis, XRD, SEM, and TEM analyses.
TEM images showed unique pearl-bead-necklace structured morphologies at higher DWCNT ratios.
The nanocomposite materials showed characteristic anatase TiO2 Raman bands in addition to the carbon nanotube D and G bands.
Red shifts in the UV-Vis absorption edge were observed at low DWCNT percentages.
The photocatalytic activity of DWCNT/N,Pd TiO2 nanocomposite was evaluated by the photocatalytic degradation of eosin yellow under simulated solar light irradiation and the 2% DWCNT/N,Pd TiO2 nanocomposite showed the highest photoactivity while the 20% DWCNT/N,Pd TiO2 hybrid was the least efficient.
The photocatalytic enhancement was attributed to the synergistic effects of the supporting and electron channeling role of the DWCNTs as well as the electron trapping effects of the platinum group metal.
These phenomena favour the separation of the photogenerated electron-hole pairs, reducing their recombination rate, which consequently lead to significantly enhanced photoactivity.
American Psychological Association (APA)
Kuvarega, Alex T.& Mamba, Bhekie B.. 2016. Double Walled Carbon NanotubeTiO2 Nanocomposites for Photocatalytic Dye Degradation. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1109130
Modern Language Association (MLA)
Kuvarega, Alex T.& Mamba, Bhekie B.. Double Walled Carbon NanotubeTiO2 Nanocomposites for Photocatalytic Dye Degradation. Journal of Nanomaterials No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1109130
American Medical Association (AMA)
Kuvarega, Alex T.& Mamba, Bhekie B.. Double Walled Carbon NanotubeTiO2 Nanocomposites for Photocatalytic Dye Degradation. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1109130
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109130