Carbon nanotubes-dispersed TiO2 nanoparticles with their enhanced photocatalytic activity

Carbon nanotubes-dispersed TiO2 nanoparticles with their enhanced photocatalytic activity
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碳纳米管分散的TiO2纳米粒子具有增强的光催化活性

DOI:
10.1016/j.materresbull.2014.07.046
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发表时间:
2014-11
影响因子:
5.4
通讯作者:
Wang Tao
Wang Tao
中科院分区:
材料科学2区
文献类型:
--
作者:
Liu Bo;Xu Youfeng;Cui Jing;Wang Sheng;Wang Tao

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采用一种新的碳纳米管分散法制备高活性二氧化钛纳米粒子。场发射扫描电子显微镜和透射电子显微镜显示,纳米TiO 2颗粒高度分散,粒径在10-20 nm之间。X射线衍射和比表面积测试表明,合成的纳米TiO 2具有高活性,比表面积为147.36 m2/g。以罗丹明B为光催化剂,考察了TiO 2的光催化活性。结果表明,采用碳纳米管分散法制备的TiO 2纳米粒子的光催化活性是传统水热法制备的TiO 2纳米粒子的3倍。
A novel carbon nanotubes (CNTs)-dispersed route is used to prepare high-activity titanium dioxide nanoparticles (TiO2). Field-emission scanning electron microscopy and transmission electron microscopy reveals that the irregular TiO2nanoparticles with diameters of 10–20 nm are highly dispersed. X-ray diffraction and specific surface area measurement show that high-activity anatase crystal is formed and the specific surface area of TiO2nanoparticles is 147.36 m2/g. The photoactivity of TiO2was tested by photodegradation of Rhodamine B. The result shows that the photocatalytic activity of TiO2nanoparticles prepared by the CNTs-dispersed route is three times higher than that by conventional hydrothermal treatment.
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