Hydrothermal synthesis and photoluminescence behavior of CeO<sub>2</sub> nanowires with the aid of surfactant PVP

Ming-zai Wu; Yan-mei Liu; Peng Dai; Zhao-qi Sun; Xian-song Liu

doi:10.1007/s12613-010-0343-3

Volume 17 Issue 4

Aug. 2010

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Abstract

International Journal of Minerals, Metallurgy and Materials > 2010 > 17(4): 470-474. > DOI: 10.1007/s12613-010-0343-3

Ming-zai Wu, Yan-mei Liu, Peng Dai, Zhao-qi Sun, and Xian-song Liu, Hydrothermal synthesis and photoluminescence behavior of CeO₂ nanowires with the aid of surfactant PVP, Int. J. Miner. Metall. Mater., 17(2010), No. 4, pp.470-474. https://doi.org/10.1007/s12613-010-0343-3

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Hydrothermal synthesis and photoluminescence behavior of CeO₂ nanowires with the aid of surfactant PVP

Ming-zai Wu^1,2), ,,
Yan-mei Liu¹⁾,
Peng Dai¹⁾,
Zhao-qi Sun¹⁾ and
Xian-song Liu^1,2)

Author Affilications

Key Laboratory of Opto-electronic Information Acquisition and Manipulation, Anhui University, Hefei, 230039, China
Engineering Technology Research Center of Magnetic Materials, Anhui University, Hefei, 230039, China

Funds:

This work was financially supported by the National Natural Science Foundation of China (Nos.50901074 and 50672001) and the Young Teacher Natural Science Fund of Anhui Province, China (No.2008jq1002).

Received: 21 July 2009; Revised: 17 August 2009; Accepted: 28 August 2009; Available Online: 13 June 2021

Graphical Abstract

Abstract

Abstract

Well-crystalline CeO₂ nanowires were prepared via a surfactant-assisted hydrothermal process. Reaction temperature and reaction time were changed for the determination of optimal synthesis parameters. The as-obtained products were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and field emission scanning electron microscopy (FESEM). The results show that single crystal CeO₂ nanowires with high yield and good uniformity can be obtained hydrothermally at 180℃ for 12 h with the aid of 2.0 g surfactant (polyvinyl pyrrolidone, PVP). The role of PVP was then discussed and a possible growth mechanism was proposed. Moreover, room temperature photoluminescence (PL) spectra were obtained for these CeO₂ nanowires, which are believed to be related to the abundant defects in these nanostructures.
- cerium oxide,
- polyvinyl pyrrolidone,
- hydrothermal,
- photoluminescence

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