Biomolecule-assisted solvothermal synthesis of coral-like Bi₂S₃ nanostructures

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• 作者：Sulawan Kaowphong ; Phattharanit Dumrongrojthanath ; Sila Kittiwachana ; Somchai Thongtem ; Titipun Thongtem
• 关键词：Semiconductors ; Nanocrystalline materials ; Electron microscopy ; Spectroscopy
• 刊名：Materials Letters
• 出版年：2013
• 出版时间：15 September, 2013
• 年：2013
• 卷：107
• 期：Complete
• 页码：295-298
• 全文大小：1076 K

文摘

Bi₂S₃ nanostructures were prepared via a simple biomolecule-assisted solvothermal synthesis through the reaction between bismuth nitrate and l-cysteine, using ethylenediamine as a solvent because of its strong polarity and coordination. The ethylenediamine solvent also acted as a structure-directing molecule. The products, characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), were orthorhombic Bi₂S₃ with coral-like nanostructures. The crystallization and microstructures of the products were improved when the reaction times were prolonged. Energy dispersive X-ray spectroscopy (EDS) was also used to confirm the stoichiometry of the Bi₂S₃.