Preparation, Characterization, and Photocatalytic Applications of MWCNTs/TiO2 Composite

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Kamil, Ahmed M.; Hussein, Falah H.; Halbus, Ahmed F.; Bahnemann, Detlef W.: Preparation, Characterization, and Photocatalytic Applications of MWCNTs/TiO2 Composite. In: International Journal of Photoenergy 2014 (2014), 475713. DOI: http://dx.doi.org/10.1155/2014/475713

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Abstract: 
The multiwall carbon nanotubes (MWCNTs)/titanium dioxide (P25) composite in different ratios was prepared using simple evaporation and drying process. The composite was characterized by Raman spectroscopy, X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy, and scanning electron microscopy (SEM). The photocatalytic activity of this composite was investigated using degradation of the Bismarck brown R dye (BBR). An optimal MWCNTs/TiO2 ratio of 0.5% (w/w) was found to achieve the maximum rate of BBR degradation. It was observed that the composite exhibits enhanced photocatalytic activity compared with TiO2. The enhancement in photocatalytic activity performance of the MWCNTs/P25 composite is explained in terms of recombination of photogenerated electron-hole pairs. In addition, MWCNTs act as a dispersing support to control the morphology of TiO2 particles in the MWCNTs/TiO2 composite.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2014
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
total perc.
1 image of flag of Germany Germany 149 71.98%
2 image of flag of United States United States 15 7.25%
3 image of flag of China China 9 4.35%
4 image of flag of India India 6 2.90%
5 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 5 2.42%
6 image of flag of France France 3 1.45%
7 image of flag of Kuwait Kuwait 2 0.97%
8 image of flag of Europe Europe 1 0.48%
9 image of flag of Algeria Algeria 1 0.48%
10 image of flag of Brazil Brazil 1 0.48%
    other countries 15 7.25%

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