Preparation and Characterization of Bi₄Si₃O₁₂ Powders by Templates-Hydrothermal Method

Abstract:

Bi₄Si₃O₁₂ powders are prepared by template -hydrothermal used Bi₄Si₃O₁₂ as a template made by molten-salt method. The phase composition and morphological characteristics of BSO nanoparticles were analyzed and observed by X-ray diffraction and transmission scanning electron microscopy. The results show that with the salt content of 50wt%, calcination temperature 770°C, it can form a high purity Bi₄Si₃O₁₂ template. A single Bi₄Si₃O₁₂ phase can be obtained by template –hydrothermal, with template addition 30wt%, the reaction temperature 240°C, holding time for 24h, and prolonging the reaction time is conducive to Bi₄Si₃O₁₂ grain growth. The powders have a good dispersion, and size of particles is about 10μm or so, and show a columnar shape.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 2149-2152
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.2149
• Online since: May 2011
• Authors: Qing Ju Ning, Bang Qing Wang, Su Hang Gu, Fang Fang Guo
• Keywords: Bi₄Si₃O₁₂, Crystal Growth, Molten Salt Method, Template–Hydrothermal-Method

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