| TiOCl2溶液微波加热制备金红石型TiO2纳米粒子 |
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| 引用本文： | 王新,韩梅娟,魏雨,王延吉.TiOCl2溶液微波加热制备金红石型TiO2纳米粒子[J].人工晶体学报,2004,33(4):634-637. |
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| 作者姓名： | 王新 韩梅娟 魏雨 王延吉 |
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| 作者单位： | 河北工业大学化工学院,天津,300130;河北师范大学化学学院,石家庄,050016;河北师范大学化学学院,石家庄,050016;河北工业大学化工学院,天津,300130 |
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| 基金项目： | theNaturalScienceFundofHebeiProvince (No .50 2 1 54) |
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| 摘 要： | 本文报道了一种由TiOCl2液相直接合成金红石型TiO2纳米粒子的新方法,即微波诱导沸腾回流强迫水解法,用该法制备出常规条件下不能得到的产品.所得产物用粉末X射线衍射仪和透射电子显微镜表征,证明产物为金红石型,粒子尺寸5～30nm可控.研究表明,产物物相取决于Ti4+的初始水解速率,水解速率越快,越有利于金红石相成核;通过控制初始Ti4+的浓度,可改变纳米TiO2的粒径.另外还讨论了该金红石型TiO2纳米粒子的成核机理.
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| 关 键 词： | 微波诱导 金红石型TiO2 纳米粒子 成核机理 |
Microwave-assisted Synthesis of Rutile Titania Nanoparticles from TiOCl2 Aqueous Solution |
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| Abstract.Microwave-assisted Synthesis of Rutile Titania Nanoparticles from TiOCl2 Aqueous Solution[J].Journal of Synthetic Crystals,2004,33(4):634-637. |
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| Authors: | Abstract |
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| Abstract: | Rutile TiO_2 nanoparticles of controled size were prepared by a very simple forced hydrolysis from TiOCl_2 aqueous solution using microwave irradiation. The products were analyzed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The TiO_2 particles produced from the present route have spherical structure. The influence of heating power on TiOCl_2 solution hydrolytic process was studied and a possible nucleation mechanism of rutile TiO_2 nanoparticles was discussed. |
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| Keywords: | microwave assistance rutile titania nanoparticles nucleation mechanism |
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