钕掺杂纳米二氧化钛光催化活性研究
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中国科学院上海技术物理研究所 红外物理国家重点实验室,中国科学院上海技术物理研究所 红外物理国家重点实验室,华东师范大学极化材料与器件教育部重点实验室,上海,中国科学院上海技术物理研究所 红外物理国家重点实验室

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The effect of neodymium ion doping on the photocatalytic properties of nano-titanium dioxide
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National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences,National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences,Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai,National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences

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    摘要:

    采用溶胶-凝胶法在Si(111)衬底上制备纳米TiO2薄膜,利用电化学阴极还原法对TiO2纳米薄膜掺杂Nd3+,对其结构及光催化活性进行研究,结果显示,所制备的样品均为多晶结构,随着Nd3 掺杂量的增加颗粒尺寸明显减小,比表面积增大.Nd3 的掺杂导致TiO2光催化剂吸光能力增强,同时吸收限红移,提高了光的利用率,并且当掺杂量为1.2%时,光催化活性最好.

    Abstract:

    The nano- TiO2 doped with Nd3+ have been prepared by chemical solution deposition on silicon substrates, followed by cathodic electrochemical process using neodymium nitrate solition as the Nd source. The X-ray diffraction (XRD) pattern revealed that the Nd3 -doped TiO2 thin film has a nano-multi-crystal structure. With the increase of the neodymium content, the surface areas of Nd3 -doped TiO2 thin film is larger and the grain diameter decreases, obviously. The existence of the doped element Nd increases the photocatalytic activity of TiO2, and results in red shift of the absorption limit.The highest photocatalytic activity is achieved with the optimal dosage of neodymiumion at 1.2%.

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陶佰睿,苗凤娟,张健,褚君浩.钕掺杂纳米二氧化钛光催化活性研究[J].红外与毫米波学报,2014,33(4):355~358]. TAO Bai-Rui, MIAO Feng-juan, ZHANG Jian, CHU Jun-Hao. The effect of neodymium ion doping on the photocatalytic properties of nano-titanium dioxide[J]. J. Infrared Millim. Waves,2014,33(4):355~358.]

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  • 收稿日期:2013-04-14
  • 最后修改日期:2014-05-16
  • 录用日期:2013-05-06
  • 在线发布日期: 2014-09-02
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