Effect of aging on the properties of TiO2 nanoparticle
Effect of aging on the properties of TiO2 nanoparticle
复制标题
老化对TiO2纳米粒子性能的影响
DOI：
10.1007/s40094-016-0212-1
复制
发表时间：
2016
影响因子：
--
通讯作者：
D. Dorranian
中科院分区：
文献类型：
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作者：
Nafise Ebrahim Jasbi;D. Dorranian
实验研究了老化对水中激光烧蚀法制备的纳米二氧化钛性能的影响。采用调Q Nd：YAG激光器的基波波长在20、35、50和65 °C的温度下照射蒸馏水中的高纯钛板。在制备后立即和1周后通过UV-Vis-NIR光谱法、X射线衍射法和动态光散射装置诊断所制备的纳米颗粒。利用Tauc方法提取了样品的带隙能量。一周后，纳米颗粒的尺寸增加，并且它们的带隙能量降低。结果表明，TiO 2纳米粒子在1周后由板钛矿相转变为金红石相。
Effect of aging on the properties of titanium dioxide nanoparticles produced by laser ablation process in water is investigated experimentally. The fundamental wavelength of a Q-switched Nd:YAG laser was employed to irradiate a high-purity Ti plate in distilled water at temperatures of 20, 35, 50 and 65 °C. Produced nanoparticles were diagnosed by UV–Vis–NIR spectroscopy, X-ray diffraction method, and dynamic light scattering device immediately after production and 1 week after. Bandgap energy of samples was extracted using Tauc method. Size of nanoparticles was increased after a week and their bandgap energy was decreased. Results show that the phase of TiO2nanoparticles was transited from brookite to rutile after 1 week.