Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 10, Issue 5, Pages 729-736Publisher
SPRINGER
DOI: 10.1007/s11051-007-9301-z
Keywords
titania nanotubes; cadmium sulfide; nanocomposite; photocatalysis; synthesis; processing
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In order to efficiently use the visible light in the photocatalytic reaction, a novel bamboo-like CdS/TiO(2) nanotubes composite was prepared by a facile chemical reduction method, in which CdS nanoparticles located in the TiO(2) nanotubes. The composition and structure of this nanocomposite were characterized by TEM, HRTEM, XRD, XPS, FTIR and UV-vis spectroscopy. This CdS/TiO(2) nanotubes composite exhibited much higher visible-light photocatalytic activity for the degradation of methylene blue than pure TiO(2) nanotubes and CdS nanoparticles, and the highest photodegradation efficiency after 6 h irradiation can reach 84.5%. It is inferred that the unique structure of CdS/TiO(2) nanotubes composites acts an important role for the improvement of their photocatalytic activity.
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