Abstract
The 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 CeO2 nanostructures, including XRD, SEM, XPS, Raman spectra, PL spectra. The XRD results demonstrate that all the samples own a cubic fluorite structure of CeO2 with 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.
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This work was supported by the Natural science foundation for high education of Jiangsu Province (Grant No. 17KJB510024).
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Shen, L., Zhang, H., Liu, G. et al. Facile and controlled hydrothermal synthesis of two kinds of large-scale shuttle-like CeO2 nanostructures and their optical properties. J Mater Sci: Mater Electron 29, 2045–2050 (2018). https://doi.org/10.1007/s10854-017-8117-6
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DOI: https://doi.org/10.1007/s10854-017-8117-6