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The effects of synthesis procedures on the structure and morphology of multiwalled carbon nanotubes (MWNTs)/titania (TiO2) nanocomposites prepared by hydrothermal method
Authors:Huifang Xu   Jing Wang   Haijiao Zhang  Yudong Huang
Affiliation:(1) School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China;(2) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Abstract:The nanocomposites of multiwalled carbon nanotubes (MWNTs)/titania (TiO2) were prepared by direct growth of TiO2 nanocrystals onto carboxyl-modified MWNTs under hydrothermal condition. The structure and morphology of TiO2 nanocrystals growing on MWNTs were tuned by adjusting acidity, reaction temperature, and reactant ratio. The results showed that a uniform layer of anatase TiO2 nanocrystals on MWNTs could be achieved at proper synthesis parameters. Flowerlike assemblage of rutile TiO2 nanocrystals was dispersed on MWNTs. The formation mechanism of MWNTs/TiO2 nanocomposites was further provided.
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