Synthesis and characterization of nanostructured powders of Bi2O3, BiOCl and Bi

In the last years, synthesis and characterization of bismuth compounds have received a great attention due to their potential applications. In this work, nanostructured powders of Bi2O3, BiOCl and Bi were prepared by a simple aqueous precipitation method using elemental bismuth as starting material and varying some experimental conditions. The samples obtained were characterized using X-ray diffraction (XRD) and transmission electronic microscopy (TEM); fluorescence, infrared and UV-vis absorption spectroscopies were also used. The obtained powders present a particle size under 100 nm, irregular morphology and agglomeration. A quantum confinement effect can be observed in the optical properties of the samples prepared in this work making them an interesting option for industrial applications. © 2010 Elsevier B.V. All rights reserved.

Bismuth; Bismuth oxide; Bismuth oxychloride; Chemical synthesis; Nanopowders Bismuth; Chlorine compounds; Nanostructured materials; Optical properties; Particle size; Powders; Precipitation (chemical); Synthesis (chemical); Ultraviolet spectroscopy; X ray diffraction; Aqueous precipitation methods; Bismuth oxides; Bismuth oxychloride; Nano powders; Quantum confinement effects; Synthesis and characterizations; Transmission electronic microscopies; UV-Vis absorption spectroscopy; Bismuth compounds

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