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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (7): 589-594. 上一篇    下一篇

研究论文

碳纳米管/SnO2复合电极的制备及其电催化性能研究

高晓红1, 张登松1,2, 施利毅*,1,3, 方建慧1, 曹为民1   

  1. (1上海大学理学院 上海 200444)
    (2上海大学材料科学与工程学院 上海 200072)
    (3上海大学纳米科学与技术研究中心 上海 200444)
  • 投稿日期:2006-09-13 修回日期:2006-11-20 发布日期:2007-04-14
  • 通讯作者: 施利毅

Preparation and Electrocatalytic Performance of Carbon Nanotubes/SnO2 Composite Electrodes

GAO Xiao-Hong1; ZHANG Deng-Song1,2; SHI Li-Yi*,1,3; FANG Jian-Hui1; CAO Wei-Min1   

  1. (1 School of Science, Shanghai University, Shanghai 200444)
    (2 School of Material Science and Engineering, Shanghai University, Shanghai 200072)
    (3 Research Center of Nano-Science and Technology, Shanghai University, Shanghai 200444)
  • Received:2006-09-13 Revised:2006-11-20 Published:2007-04-14
  • Contact: SHI Li-Yi

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采用液相沉积法制备碳纳米管(CNTs)/SnO2复合材料, 并制备成电极, 分别与石墨/SnO2及活性炭/SnO2复合电极比较, 考察电催化降解有机废水的性能. 由于CNTs高的比表面积及优良的导电性能, 结合SnO2良好的催化活性, CNTs/SnO2复合电极电催化降解有机废水性能优越. 研究发现, CNTs的预处理情况、SnO2负载量以及煅烧温度对复合电极的电催化性能有重要影响. 当功能化CNTs负载40% SnO2, 煅烧温度600 ℃时, 所得CNTs/SnO2复合电极电催化降解有机废水的能力是纯CNTs电极的2倍. 最后, 初步探讨了CNTs/SnO2复合电极电催化降解有机废水的机理.

关键词: 碳纳米管, 二氧化锡, 电催化氧化, 有机废水

Carbon nanotubes (CNTs)/SnO2 composites were prepared by a simple liquid phase deposition method. The composite electrodes were prepared for electrocatalytic degradation of organic wastewater. Electrocatalytic performance of the CNTs/SnO2 composite electrodes improves remarkably as compared with that of activated carbon composite and graphite composite electrodes, due to the high surface area and excellent conductivity of CNTs as well as the excellent electrocatalytic performance of SnO2. The electrocatalytic capacity of the electrodes of CNTs/SnO2 composites, which were prepared with functional CNTs and 40% SnO2 as well as calcined at 600 ℃, is the double of that of pristine CNTs electrodes.

Key words: carbon nanotube, tin oxide, electrocatalytic oxidation, organic wastewater