Fabrication and Characterization of Lu2O3 Nanowire Arrays by Sol-Gel Template Method Assisted with Ultrasonic Treatment

doi:10.15541/jim20160014

Abstract

Abstract:

Lu₂O₃ nanowire arrays were fabricated by a Sol-Gel anodic aluminum oxide (AAO) template method assisted with ultrasonic treatment. The structure and morphology of Lu₂O₃ nanowire arrays were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), Energy disperse X-ray spectroscope (EDX), and transmission electron microscope (TEM). The results indicate that the as-prepared nanowire arrays consist of cubic structure of polycrystalline Lu₂O₃. The Lu₂O₃ nanowires are parallel to each other and quite uniform in diameter of about 200 nm. The formation mechanism of nanowires is also explored here. It is found that it is easy to evolve Lu₂O₃into bamboo-like nanotubes without ultrasonic treatment. Compared with traditional Sol-Gel template method, a good filling of Lu₂O₃ nanowires embedded in the AAO template can be obtained by improved ultrasonic- assisted technique. Ultrasonic treatment is useful to prepare for other nanowire arrays of different materials.

Key words: ultrasonic treatment, Sol-Gel, AAO template, Lu2O3 nanowire arrays

CLC Number:

O614

HU Ya-Hua, GU Mu, ZHANG Zhi-Yuan, LIU Xiao-Lin, HUANG Shi-Ming, LIU Bo, ZHANG Juan-Nan. Fabrication and Characterization of Lu₂O₃ Nanowire Arrays by Sol-Gel Template Method Assisted with Ultrasonic Treatment[J]. Journal of Inorganic Materials, 2016, 31(8): 807-811.

Figures/Tables 4

Fig. 1 SEM images of samples(a) Cross-section view of the AAO template without supersonic treatment; (b) Enlarged SEM image of the dashed square in (a); (c) Cross-section view of the AAO template with supersonic treatment; (d) Enlarged SEM image of the dashed square in (c)

Fig. 2 SEM images of Lu2O3 nanowire arrays(a) Top view of Lu2O3 nanowire arrays embedded in the AAO template after polishing; (b, c) Top view and (d) cross-section view of Lu2O3 nanowire arrays etched in a NaOH solution for 30 min

Fig. 3 (a) XRD pattern of Lu2O3 nanowire arrays embedded in the AAO template and (b) EDX analysis spectrum of Lu2O3 nanowire arrays after etching

Fig. 4 (a) TEM images of dispersed Lu2O3 nanowires and (b) EDX analysis spectrum of Lu2O3 nanowires

References 25

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Fabrication and Characterization of Lu₂O₃ Nanowire Arrays by Sol-Gel Template Method Assisted with Ultrasonic Treatment

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