The Effect of Acid Treatment and Reactive Temperature on the Formation of TiO2 Nanotubes.
The Effect of Acid Treatment and Reactive Temperature on the Formation of TiO2 Nanotubes.
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DOI：
10.1166/jnn.2015.10025
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发表时间：
2015-07
影响因子：
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通讯作者：
P. Viet;B. T. Phan;L. V. Hiếu;Cao Minh Thi
中科院分区：
文献类型：
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作者：
P. Viet;B. T. Phan;L. V. Hiếu;Cao Minh Thi
以商品TiO 2为原料，采用水热法合成了TiO 2纳米管（TNTs）。采用X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和比表面积（BET）等测试手段对样品进行了表征。未经酸处理的样品（pH ~ 12）没有出现纳米管结构，而酸处理样品直到pH达到2左右时，纳米管的直径约为10 nm。反应温度为135 °C的样品出现纳米管结构，反应温度为150 °C的样品出现纳米管结合，处理温度为170 °C的样品既出现纳米管结构又出现颗粒团聚。TNT的表面积为83.5m2/g，而商业TiO 2颗粒的表面积为41 m2/g。
TiO2 nanotubes (TNTs) were synthesized by a hydrothermal method from commercial TiO2 in NaOH followed by HCl washing. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmitting electron microscopy (TEM), and Brunauer-Emmet-Teller (BET) measurements. The untreated acid samples (pH ~ 12) don't appear nanotubes structure, while acid-treated samples until the pH reached around 2 have approximate diameters of nanotubes of 10 nm. The samples reaction temperature at 135 °C appear nanotubes structure while the samples reaction temperature at 150 °C have combination of the nanotubes and the samples treatment temperature at 170 °C appear both nanotubes structure and particles clumping together. The surface area of the TNTs was 83,5 m2/g while the surface area of commercial TiO2 particles was 41 m2/g.