Hydrothermal synthesis and characterization of TiO2 nanorod arrays on glass substrates

Hydrothermal synthesis and characterization of TiO2 nanorod arrays on glass substrates
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玻璃基底上TiO2纳米棒阵列的水热合成及表征

DOI:
10.1016/j.materresbull.2009.01.009
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发表时间:
2009-06
影响因子:
5.4
通讯作者:
Wang, Xidong
Wang, Xidong
中科院分区:
材料科学2区
文献类型:
--
作者:
Zhang, Mei;Guo, Min;Li, Yuxiang;Wang, Xidong

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采用水热法在预处理过的玻璃基板上制备了大规模、排列良好的tio2单晶纳米棒阵列。采用x射线衍射、扫描电镜和透射电镜对制备的tio2纳米棒阵列进行了表征。x射线衍射结果表明,tio2的主要相为金红石。扫描电镜和透射电镜结果表明,在预处理后的玻璃基板上生长的大规模tio2纳米棒阵列是排列良好的单晶,沿[001]方向生长。纳米棒的平均直径和长度分别约为21和400nm。通过测定甲基蓝水溶液在254nm紫外光照射下的光降解率,研究了tio2纳米棒阵列的光催化活性。结果表明,tio2纳米棒阵列具有较高的光催化活性。
Large-scale, well-aligned single crystalline TiO2nanorod arrays were prepared on the pre-treated glass substrate by a hydrothermal approach. The as-prepared TiO2nanorod arrays were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. X-ray diffraction results show that the main phase of TiO2is rutile. Scanning electron microscopy and transmission electron microscopy results demonstrate that the large-scale TiO2nanorod arrays grown on the pre-treated glass substrate are well-aligned single crystal and grow along [001] direction. The average diameter and length of the nanorods are approximately 21 and 400nm, respectively. The photocatalytic activity of TiO2nanorod arrays was investigated by measuring the photodegradation rate of methyl blue aqueous solution under UV irradiation (254nm). And the results indicate that TiO2nanorod arrays exhibit relatively higher photocatalytic activity.
有机酸对金红石TiO2纳米棒尺寸控制合成的影响
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