Synthesis of SnO2@SnS2 core–shell nanorods by double crucible method and their photocatalysis
| Autor: | Yinghua Fan, Jinxian Wang, Xiangting Dong, Wensheng Yu, Qin Luo, Guixia Liu |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Nanomaterials Tetragonal crystal system chemistry.chemical_compound Chemical engineering chemistry Transmission electron microscopy Phase (matter) Photocatalysis Methyl orange Nanorod Electrical and Electronic Engineering Visible spectrum |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 25:3801-3806 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | SnO2@SnS2 core–shell structural nanorods were prepared by the solid phase double crucible method. The structure, morphology and optical properties of the as-prepared samples were characterized by X-ray diffraction, transmission electron microscope and ultraviolet–visible–near-infrared spectrophotometer. The results indicated that the mixture of hexagonal phases SnS2 and tetragonal phase SnO2 was formed at 400 and 500 °C and the molar ratio of SnO2 to thioacetamide was 1:3. SnS2 was uniformly coated on the surface of SnO2 nanorods, and SnO2@SnS2 core–shell nanorods with the shell thickness of about 3–5 nm were obtained. Furthermore, their photocatalytic properties were tested for the degrading of methyl orange in water under visible light (λ > 420 nm) irradiation. Compared with pure SnS2 nanomaterials, the core–shell nanorods demonstrated more superior photocatalytic activity. These meaningful results had laid certain foundation for further research on metal oxide@metal sulfide core–shell structure nanomaterials. |
| Databáze: | OpenAIRE |
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