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对新型纳米管状TiO_2的形貌结构和物理化学特性进行了考察,发现此种TiO_2纳米管由2~5个单层 TiO_2分子组成,管内径在 4.2~5.9 nm之间,有很高的比表面积和孔体积(分别可达379 m~2/g和1.431 cm~2/g),对染料活性艳X-3B的脱色活性可比Degussa P-25 TiO_2提高约2倍,是一种很有希望在光催化和复合纳米材料等方面应用的新型TiO_2材料。
The morphology and physico-chemical properties of the novel nanotube TiO 2 were investigated. It was found that the TiO 2 nanotube consisted of 2 to 5 monolayers of TiO 2 with an inner diameter of 4.2-5.9 nm. High specific surface area and pore volume (up to 379 m 2 / g and 1.431 cm 2 / g, respectively), the decolorization activity of reactive brilliant X-3B was about 2 times higher than that of Degussa P-25 TiO 2 A promising new TiO 2 material for photocatalysis and composite nanomaterials.