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jina123

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By electrophoretic deposition of TiO2 colloidal suspensions into the pores of an AAM, ordered TiO2 nanowire arrays can be obtained
  In a typical procedure, TTIP is dissolved in ethanol at room temperature, and glacial acetic acid mixed with deionized water and ethanol is added under pH = 2-3 with nitric acid.
TiO2 nanotubes can also be obtained using the sol-gel method by templating with an AAM and other organic compounds.
For example, when an AAM is used as the template, a thin layer of TiO2 sol on the wall of the pores of the AAM is first prepared by sucking TiO2 sol into the pores of the AAM and removing it under vacuum; TiO2 nanowires are obtained after the sol is fully developed and the AAM is removed.
The AAM was hydrolyzed by water vapor over a HCl solution for 24 h, air-dried at room temperature, and then calcined in a furnace at 673 K for 2 h and cooled to room temperature with a temperature ramp of 2 °C/h.
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jina123: 金币+8, ★★★★★最佳答案 2016-01-02 13:46:39
通过二氧化钛的胶体悬浮液在AAM孔中的电泳淀积,可以得到有序的TiO2纳米线阵列,
在经典的方法中,室温下将TTIP溶于乙醇(A),将冰醋酸与去离子水、乙醇混合用硝酸控制pH=2-3。(B)
TiO2纳米管也可以使用溶胶-凝胶法,通过用的AAM模板和其他有机化合物模板化辅助获得。
例如,用AAM作模板,首先制备TiO2溶胶吸吮到AAM模板孔中并在真空下去除,TiO2溶胶在AAM的孔的壁上形成薄层;溶胶充分生长后,除去AAM模板,得到二氧化钛纳米线。
水解AAM可用HCl溶液水蒸汽24小时,在室温下空气干燥,随后在炉中煅烧(673 K,2小时)并冷却到室温(升温速率在2℃/小时)。
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