AbstractThe large-scale beautiful shuttle-like nanostructures with numerous nanorods assembling at both ends have been pu'/> Facile and controlled hydrothermal synthesis of two kinds of large-scale shuttle-like CeO_2 nanostructures and their optical properties
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Facile and controlled hydrothermal synthesis of two kinds of large-scale shuttle-like CeO_2 nanostructures and their optical properties

机译:两种大型穿梭状CeO_2纳米结构的可控水热合成及其光学性质

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摘要

AbstractThe large-scale beautiful shuttle-like nanostructures with numerous nanorods assembling at both ends have been purposefully fabricated via a facile and efficient hydrothermal route. Various techniques have been applied to investigate the CeO2nanostructures, including XRD, SEM, XPS, Raman spectra, PL spectra. The XRD results demonstrate that all the samples own a cubic fluorite structure of CeO2with no other crystalline impurity phase. The results show that the morphology of the as-synthesized nanostructures gradually changes from rough shuttle-like structure to smooth shuttle-like structure with the increase of the amount of NH4HCO3. It is found that there are many Ce3+ions and oxygen vacancies in surface of samples, which can account for their similar room temperature photoluminescence emission peaks. Their PL intensity is different from each other, which may be attributed to the effect of different morphology and size of the samples.
机译: 摘要 故意通过以下方法制造了大规模美丽的穿梭状纳米结构,其两端均组装有许多纳米棒简便高效的热液路线。 CeO 2 纳米结构已被广泛应用,包括XRD,SEM,XPS,拉曼光谱,PL光谱。 X射线衍射结果表明,所有样品均具有CeO 2 的立方萤石结构,无其他晶体杂质相。结果表明,随着NH 4 HCO 3 。发现样品表面存在大量的Ce 3 + 离子和氧空位,可以解释其相似的室温光致发光峰。它们的PL强度互不相同,这可能是由于样品的形态和大小不同所致。

著录项

  • 来源
    《Journal of materials science》 |2018年第3期|2045-2050|共6页
  • 作者单位

    School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University;

    School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University;

    School of Physical and Mathematical Sciences, Nanjing Tech University;

    School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 13:43:26

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