Fabrication of three-dimensional snowflake-like bismuth sulfide nanostructures by simple refluxing |
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Authors: | Jiliang Wu Frankie YF Chan Hui Li Rong Chen |
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Affiliation: | a Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430073, PR China b Electron Microscope Unit, The University of Hong Kong, Hong Kong, PR China |
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Abstract: | Three-dimensional snowflake-like bismuth sulfide nanostructures were successfully synthesized by simple refluxing at 160 °C in ethylene glycol, using bismuth citrate and thiourea as reactants. The crystal structures and morphologies of the products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and energy dispersive X-ray spectroscopy (EDX). The Bi2S3 nanostructure was built up by highly ordered one-dimensional Bi2S3 nanorods, which was aligned in an orderly fashion. Ethylene glycol plays a critical role in the creation of bismuth sulfide three-dimensional nanostructures, which serves as an excellent solvent and structure director. Bismuth citrate, a linear polymer, also makes for the formation of the three-dimensional nanostructures. |
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Keywords: | Nanomaterials Microstructure Bismuth sulfide Snowflake-like Ethylene glycol |
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