Preparation, characterization, and photocatalytic applications of MWCNTs/TiO2 composite
- verfasst von
- A.M. Kamil, F.H. Hussein, A.F. Halbus, D.W. Bahnemann
- 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/TiO
2 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 TiO
2. 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 TiO
2 particles in the MWCNTs/TiO
2 composite.
- Organisationseinheit(en)
-
Institut für Technische Chemie
- Typ
- Artikel
- Journal
- International Journal of Photoenergy
- Band
- 2014
- ISSN
- 1110-662X
- Publikationsdatum
- 28.08.2014
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Allgemeine Chemie, Atom- und Molekularphysik sowie Optik, Allgemeine Materialwissenschaften, Erneuerbare Energien, Nachhaltigkeit und Umwelt
- Ziele für nachhaltige Entwicklung
- SDG 7 – Erschwingliche und saubere Energie
- Elektronische Version(en)
-
https://doi.org/10.1155/2014/475713 (Zugang:
Offen)
