4.7 Article

Perfect, Sectorial, Branched Sb2O3 Microstructures Consisting of Prolate Microtubes: Controllable Seeded Growth Synthesis and Optical Properties

Journal

CRYSTAL GROWTH & DESIGN
Volume 12, Issue 2, Pages 764-770

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/cg201102v

Keywords

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Funding

  1. Tianjin Science & Technology Project of Research Fundation [20100206]
  2. National Natural Science Foundation of China [21103122]

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Perfect, sectorial, and branched Sb2O3 microstructures (st-Sb2O3) were synthesized using a hydrothermal method based on a seeded growth procedure. The structure and composition of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), infrared spectroscopy (IR), UV-vis diffusive reflectance spectroscopy (UV-vis), and photoluminescence (PL) spectroscopy. SEM images show that the st-Sb2O3 microstructures consist of several prolate microtubes, and the perimeter of the sectors are around 10-40 mu m. The prolate microtubes are approximately 30 mu m long and 10 mu m wide. The growth of st-Sb2O3 may be controlled by changing the different experimental conditions. The introduction of the seed during the growth process plays an important role in the formation of the microstructures. In addition, the PL spectrum of the st-Sb2O3 microstructures shows a strong fluorescence. The formation mechanism of the st-Sb2O3 microstructures is discussed in detail.

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