Biomolecule-assisted solvothermal synthesis of coral-like Bi<inf>2</inf>S<inf>3</inf>nanostructures

• Main Authors: Sulawan Kaowphong, Phattharanit Dumrongrojthanath, Sila Kittiwachana, Somchai Thongtem, Titipun Thongtem
• Format: Journal
• Published: 2018
• Subjects: Engineering; Materials Science; Physics and Astronomy
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879902201&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/52558
• Institution: Chiang Mai University

Bi2S3nanostructures 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 Bi2S3with coral-like nanostructures. The crystallinities 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. © 2013 Published by Elsevier B.V. All rights reserved.