Large Scale Synthesis of Nitrogen Doped TiO2 Nanoparticles by Reactive Plasma

Large Scale Synthesis of Nitrogen Doped TiO2 Nanoparticles by Reactive Plasma
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反应等离子体大规模合成氮掺杂 TiO2 纳米颗粒

DOI:
10.1016/j.matlet.2011.10.067
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发表时间:
2012-02
期刊:
影响因子:
3
通讯作者:
Lee, J.G.
Lee, J.G.
中科院分区:
材料科学3区
文献类型:
--
作者:
Liu, J.J.;Wang, H.X.;Choi, C.J.;Si, P.Z.;Jiang, W.;Li, Z.F.;Lee, J.G.

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通过在空气中使用简单的直接反应等离子体路线,可以大规模制备氮掺杂的 TiO2 纳米颗粒。 N掺杂TiO2纳米颗粒的尺寸为10至100nm,形状为球形。 N掺杂TiO2纳米粒子的结构主要呈现锐钛矿型和金红石型。大多数纳米粒子显示出无序的表面层,厚度约为 5 纳米。样品中氮掺杂的原子浓度达到2.11%,高于微米级TiO2的原子浓度。我们的光降解结果表明,N 掺杂的 TiO2 纳米粒子可以用作可见光区域的光催化剂。
Nitrogen doped TiO2nanoparticles have been prepared in large scale by using a simple direct reactive plasma route in air. The N-doped TiO2nanoparticles are 10 to 100nm in size and spherical in shape. The structure of the N-doped TiO2nanoparticles presents mainly in forms of anatase and rutile. Most nanoparticles show a disordered surface layer, which is approximately 5nm in thickness. The atomic concentration of the nitrogen doped in the samples reaches 2.11%, which is higher than that in micrometer sized TiO2. Our photo-degradation results show that the N-doped TiO2nanoparticles can be used as photo-catalysts in the visible lights region.
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