The effects of synthesis procedures on the structure and morphology of multiwalled carbon nanotubes (MWNTs)/titania (TiO₂) nanocomposites prepared by hydrothermal method

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• 作者：Huifang Xu ; Jing Wang ; Haijiao Zhang and Yudong Huang
• 刊名：Journal of Materials Science
• 出版年：2010
• 出版时间：November 2010
• 年：2010
• 卷：45
• 期：22
• 页码：6200-6205
• 全文大小：327.1 KB

文摘

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.