Enhancement of Photocatalytic Activity on TiO<subscript>2</subscript>-Nitrogen-Doped Carbon Nanotubes Nanocomposites.
In: International Journal of Photoenergy, 2013, S. 1-7
Online
academicJournal
Zugriff:
TiO2-nitrogen-doped carbon nanotubes (TiO2-CNx) nanocomposites are successfully synthesized via a facile hydrothermal method. The prepared photocatalysts were systematically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thermogravimetric and differential scanning calorimetry analyses (TGADSC). The results show that the TiO2 nanoparticles with a narrow size of 7 nmare uniformly deposited on CNx. The photocatalytic activity of the nanocomposite was studied using methyl orange (MO) as a model organic pollutant. The experimental results revealed that the strong linkage between the CNx and TiO2 played a significant role in improving photocatalytic activity. However, the mechanical process for CNx and TiO2 mixtures showed lower activity than neat TiO2. Moreover, TiO2-CNx nanocomposites exhibitmuch higher photocatalytic activity than that of neat TiO2 and TiO2-CNTs nanocomposites. The improved photodegradation performances are attributed to the suppressed recombination of electrons and holes caused by the effective transfer of photogenerated electrons from TiO2 to CNx. [ABSTRACT FROM AUTHOR]
Titel: |
Enhancement of Photocatalytic Activity on TiO<subscript>2</subscript>-Nitrogen-Doped Carbon Nanotubes Nanocomposites.
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Autor/in / Beteiligte Person: | Wang, Lingling ; Shen, Long ; Li, Yihuai ; Zhu, Luping ; Shen, Jiaowen ; Wang, Lijun |
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Zeitschrift: | International Journal of Photoenergy, 2013, S. 1-7 |
Veröffentlichung: | 2013 |
Medientyp: | academicJournal |
ISSN: | 1110-662X (print) |
DOI: | 10.1155/2013/824130 |
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