| SnO2@TiO2核-壳纳米线的制备及其光催化性能研究 |
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| 引用本文： | 赵盼,马大衍.SnO2@TiO2核-壳纳米线的制备及其光催化性能研究[J].稀有金属材料与工程,2017,46(11):3538-3543. |
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| 作者姓名： | 赵盼 马大衍 |
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| 作者单位： | 西安交通大学,西安交通大学 |
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| 基金项目： | 国家自然科学基金(51171145,51371136);陕西省自然科学基金(2015JM5244) |
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| 摘 要： | 本文通过固-液-气(VLS)生长机制,利用化学气相沉积法(CVD)制备SnO2纳米线。利用原子层沉积(ALD)以钛酸四异丙酯为前驱体在SnO2纳米线表面沉积不同厚度的TiO2壳层,形成SnO2@TiO2核-壳纳米线结构。通过中间Al2O3插层,分别制备出金红石和锐钛矿两种不同晶型的TiO2,从而制备出两种不同复合结构的SnO2@TiO2核-壳纳米线。实验研究该复合结构中TiO2的厚度与晶型对紫外光下光催化降解甲基橙溶液活性的影响。
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| 关 键 词： | SnO2@TiO2 核-壳纳米线 光催化降解 |
| 收稿时间： | 2016/12/9 0:00:00 |
| 修稿时间： | 2016/12/9 0:00:00 |
Preparation and Photocatalytic performance of SnO2@TiO2 core-shell nanowires |
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| Zhao Pan and Ma Dayan.Preparation and Photocatalytic performance of SnO2@TiO2 core-shell nanowires[J].Rare Metal Materials and Engineering,2017,46(11):3538-3543. |
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| Authors: | Zhao Pan and Ma Dayan |
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| Affiliation: | Xi''an Jiaotong University,Xi''an Jiaotong University |
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| Abstract: | To improve the photocatalytic activities of TiO2, SnO2@TiO2 core-shell structure was synthesized. SnO2 nanowires were prepared by chemical vapor deposition (CVD) based on the VLS growth mechanism, and then TiO2 was deposited on the surface of SnO2 nanowires by Atomic Layer Deposition (ALD) using tetraisopropyltitanate as the metal precursor. The results showed that titanium dioxide possesses the rutile structure in SnO2@TiO2 core-shell structure and the anatase structure appears by the effect of the intercalation of Al2O3. To examine the photocatalytic activity for degradation of methyl orange solution under ultraviolet light, the thickness and crystal structureof TiO2 in the core-shell structure were studied |
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| Keywords: | SnO2@TiO2 core-shell nanowires photocatalytic degradation |
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