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Synthesis and characterization of flower-like WS2 nanospheres via a facile hydrothermal route |
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| Authors: | Shixiu Cao Tianmo Liu Wen Zeng Shahid Hussain Xianghe Peng Fusheng Pan |
| Affiliation: | 1. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China 2. Chongqing Key Laboratory of Micro/Nano Materials Engineering and Technology, Chongqing Co-innovation Institute for Optoelectronic Materials and Devices, Research Institute for New Material Technology, Chongqing University of Arts and Science, Chongqing, 402160, China 3. National Engineering Research Center for Mg Alloys, Chongqing University, Chongqing, 400044, China 4. Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing, 40004, China |
| Abstract: | Flower-like WS2 nanospheres with high purity were successfully synthesized via a facile surfactant-assisted hydrothermal route. The products were characterized by X-ray powder diffraction and scanning electron microscopy. The flower-like WS2 nanospheres, consisting of numerous aggregate nanosheets with the width of 300–500 nm, had uniform sizes with a mean diameter about 5 μm. Further comparative experiments showed that the surfactant cetyltrimethyl ammonium bromide (CTAB) played a critical role as templates to promote the growth of WS2 nanosheets and accelerate the assembling of nanosheets into flower-like nanosphere. Interaction forces inside the CTAB made the flower-like nanospheres grow uniformly and dispersedly. Moreover, the WS2 nanoflowers exhibited excellent visible-absorption ability and may have a potential application as a visible photocatalyst. |
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