Cyclic microwave-assisted synthesis of CuFeS2 nanoparticles using biomolecules as sources of sulfur and complexing agent
Copper iron sulfide (CuFeS2) nanoparticles were successfully synthesized by a 300 W cyclic microwave radiation, exposing onto ethylene glycol containing Cu(CH3COO)2, FeCl3 · 6H 2O or FeCl2 · 4H2O and L-cysteine biomolecules. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SE...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84880067766&partnerID=40&md5=244e04ab6801ff82a0bb478ffe6c6a3f http://cmuir.cmu.ac.th/handle/6653943832/7100 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | Copper iron sulfide (CuFeS2) nanoparticles were successfully synthesized by a 300 W cyclic microwave radiation, exposing onto ethylene glycol containing Cu(CH3COO)2, FeCl3 · 6H 2O or FeCl2 · 4H2O and L-cysteine biomolecules. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Raman spectrometry and X-ray photoelectron spectroscopy (XPS) revealed the presence of pure tetragonal chalcopyrite CuFeS2 nanoparticles with valence states of Cu+, Fe3+ and S2- and four Raman shifts at 215.0-218.6, 280.2-281.4, 394.4-394.9 and 472.2-473.4 cm-1. A formation mechanism of the products was also proposed according to the experimental results. © 2013 Elsevier B.V. All rights reserved. |
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