期刊
JOURNAL OF NANOMATERIALS
卷 2012, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2012/794625
关键词
-
资金
- Shanghai Municipal Education Commission [J51803, 12ZZ195, 09SG54]
- National Science Foundation of China (NSFC) [21101105, 51174274]
SnO2 nanoparticles coated on nitrogen-doped carbon nanotubes were prepared successfully via a simple wet-chemical route. The as-obtained SnO2/CNx composites were characterized using X-ray powder diffraction, scanning electron microscopy, and transmission electron microscopy. The photocatalytic activity of as-prepared SnO2/CNx for degradation Rhodamine B under UV light irradiation was investigated. The results show that SnO2/CNx nanocomposites have a higher photocatalytic activity than pure SnO2 and SnO2/CNTs nanocomposites. This enhanced photoresponse indicates that the photoinduced electrons in the SnO2 prefer separately transferring to the CNx, which has a high degree of defects. As a consequence, the radiative recombination of the electron-hole pairs is hampered and the photocatalytic activity is significantly enhanced for the SnO2/CNx photocatalysts.
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