Raman investigation of rutile-phased TiO2 nanorods/nanoflowers with various reaction times using one step hydrothermal method
Raman investigation of rutile-phased TiO2 nanorods/nanoflowers with various reaction times using one step hydrothermal method
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DOI：
10.1007/s10854-016-4783-z
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发表时间：
2016-08-01
影响因子：
2.8
通讯作者：
Murakami, K.
中科院分区：
文献类型：
--
作者：
Ahmad, M. K.;Mokhtar, S. M.;Murakami, K.
采用一步水热法在150 ℃的固定温度下在掺氟氧化锡涂层玻璃上沉积金红石相二氧化钛纳米棒（r-TNR）和金红石相二氧化钛纳米花（r-TNFs）。水热处理通过在2、3、4、5、6、7和8h改变反应时间来进行。研究了反应时间对薄膜表面形貌、结构性能、晶粒尺寸和拉曼光谱的影响。使用X射线衍射仪、场发射扫描电子显微镜、显微拉曼光谱和能量色散X射线光谱对纳米结构样品进行分析。所得的显微拉曼光谱显示出拉曼强度的异常行为。纳米结构样品的显微拉曼光谱随反应时间的增加表现出不明显的变化和拉曼谱带的移动。这种行为可以归因于r-TNR/r-TNFs的形状和表面形态分布。
Rutile-phased titanium dioxide nanorods (r-TNRs) and rutile-phased titanium dioxide nanoflowers (r-TNFs) were deposited on fluorine-doped tin oxide coated glass by using one step hydrothermal method at a fixed temperature of 150 A degrees C. The hydrothermal treatment was conducted by varying the reaction time at 2, 3, 4, 5, 6, 7 and 8 h. The effect of reaction time on surface morphology, structure property, crystallite size and Raman spectra was investigated. The nanostructure samples were analysed using X-ray diffractometer, field emission-scanning electron microscope, micro-Raman spectroscopy, and energy-dispersive X-ray spectroscopy. The resulting micro-Raman spectra show abnormal behaviour of Raman intensity. The micro-Raman spectra of the nanostructure samples exhibit insignificant changes and shifting of Raman bands with increasing reaction time. This behaviour can be attributed to the shape and surface morphology distribution of r-TNRs/r-TNFs.