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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (18): 1641-1645.    下一篇

研究论文

多元醇法制备Cu2O/CNTs复合材料的研究

马丽丽1，余颖*,1，黄文娅1，朱路平1,李家麟1，庄源益2，漆新华2   

  1. (1华中师范大学物理科学与技术学院 武汉 430079)
    (2南开大学环境科学与工程学院 天津 300071)
  • 投稿日期:2004-07-08 修回日期:2005-05-20 发布日期:2010-12-10
  • 通讯作者: 余颖

Synthesis of Cu2O/CNTs Composite by Polyol Method

MA Li-Li1, YU Ying*,1, HUANG Wen-Ya1, ZHU Lu-Ping1, LI Jia-Lin1, ZHUANG Yuan-Yi2, QI Xin-Hua2   

  1. (1College of Physical Science and Technology, Central China Normal University, Wuhan 430079)
    (2College of Environmental Science and Engineering, Nankai University, Tianjin 300071)
  • Received:2004-07-08 Revised:2005-05-20 Published:2010-12-10
  • Contact: YU Ying

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以Cu(CH3COO)2•H2O和经硝酸处理的CNTs作为原料, 采用多元醇法成功合成了纳米氧化亚铜均布于碳纳米管表面的复合光催化剂. 用透射电镜(TEM), 高分辨透射电镜(HRTEM), X射线粉末衍射(XRD)对样品进行了表征, 测试结果表明大小为2～5 nm的氧化亚铜纳米颗粒均匀分散于碳纳米管的表面. 讨论了反应条件对Cu2O在CNTs上负载效果的影响并就多元醇法合成Cu2O/CNTs复合材料的反应机理作了初步探讨.

关键词: 纳米氧化亚铜, 碳纳米管, 多元醇法, 反应机理

Homogeneous cuprous oxide nanoparticles dotted on the surface of multiwalled carbon nanotubes (CNTs) were successfully synthesized with Cu(CH3COO)2•H2O/treated CNTs precursors by polyol method. The samples were determined by means of X-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). The effects of various experimental conditions on the obtained composites were investigated as well. Finally, possible deposition mechanism of cuprous oxide particles on the surface of CNTs was proposed. The results indicate that there are cuprous oxide nanoparticles with the diameter of 2～5 nm dotted on the surface of CNTs homogeneously by controlling the molar ratio of copper acetate to carbon nanotubes to be 1∶2, the pretreatment time for 6 h and the reaction time for 2 h. The possible mechanism is that through stirring, copper acetate may be adsorbed on the surface of carbon nanotubes by the strong interaction between copper ion and the functionalized group such as carboxyl and hydroxyl. Then, in polyol solvent, copper acetate was hydrolyzed to CuO and copper(II) ion reduced to copper (I) ion by polyol or acetate ion.

Key words: cuprous oxide nanoparticle, carbon nanotube, polyol method, deposition mechanism