Controlled synthesis and possible formation mechanism of leaf-shaped SnS2 nanocrystals |
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| Authors: | Dekun Ma Hongyang Zhou Junhao Zhang Yitai Qian |
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| Affiliation: | aNanomaterials and Chemistry Key Laboratory, Department of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, Zhejiang, PR China;bHefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, Anhui, PR China |
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| Abstract: | A sort of novel leaf-shaped SnS2 nanocrystals have been synthesized by controlled reaction of CH3CH2OCS2K with SnCl4·5H2O in aqueous solution in the absence of surfactant. The leaf-shaped nanocrystals consist of very thin sheets with several microns in length and 100–300 nm in width. The structure, composition, and morphology of the as-prepared leaf-shaped SnS2 nanocrystals were characterized by XRD, Raman spectra, XPS, and FE-SEM, respectively. Elemental analysis, FT-IR spectra, and TEM were further used to study the formation mechanism of the leaf-shaped SnS2 nanocrystals. A possible mechanism of producing lamellae – breaking into nanosheets – rolling and assembling was suggested for the leaf-shaped SnS2 nanocrystals formation based on experimental results. |
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| Keywords: | Tin bisulfide Controlled synthesis Nanocrystals Characterization |
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