Burungale V V, Satale V V, More A J, Sharma K K K, Kamble A S, Kim J H, Patil P S
Thin Film Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, M.S., India.
School of Nanoscience and Technology, Shivaji University, Kolhapur 416004, M.S., India.
J Colloid Interface Sci. 2016 May 15;470:108-116. doi: 10.1016/j.jcis.2016.02.026. Epub 2016 Feb 10.
Exotic hierarchical rutile TiO2 nanostructures are synthesized by surfactant free single step hydrothermal route. The effect of reaction temperature, ranging from 140°C to 200°C on the properties of the synthesized rutile-TiO2 is investigated. The synthesized rutile-TiO2 nanostructures are characterized using X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, UV-vis spectroscopy and scanning electron microscopy techniques. The deposited TiO2 samples are found to be photoelectrochemically active and the best photoelectrochemical performance (0.95±0.05%) is obtained for the sample deposited at 180°C. A possible temperature dependent growth mechanism resulting in photochemically active TiO2 nanostructure thin films is proposed.
通过无表面活性剂的单步水热法合成了奇异的分级金红石型TiO₂纳米结构。研究了140°C至200°C的反应温度对合成的金红石型TiO₂性能的影响。使用X射线衍射、X射线光电子能谱、拉曼光谱、紫外可见光谱和扫描电子显微镜技术对合成的金红石型TiO₂纳米结构进行了表征。发现沉积的TiO₂样品具有光电化学活性，对于在180°C沉积的样品，获得了最佳的光电化学性能（0.95±0.05%）。提出了一种可能的温度依赖性生长机制，该机制导致了具有光化学活性的TiO₂纳米结构薄膜的形成。
