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Superamphiphobic, light-trapping FeSe2 particles with a micro-nano hierarchical structure obtained by an improved solvothermal method |
Yu Jing (郁菁), Wang Hui-Jie (王会杰), Shao Wei-Jia (邵伟佳), Xu Xiao-Liang (许小亮) |
Department of Physics, University of Science and Technology of China, Hefei 230026, China |
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Abstract Wettability and the light-trapping effect of FeSe2 particles with a micro-nano hierarchical structure have been investigated. Particles are synthesized by an improved solvothermal method, wherein hexadecyl trimethyl ammonium bromide (CTAB) is employed as a surfactant. After modifying the particles with heptadecafluorodecyltrimethoxy-silane (HTMS), we find that the water contact angle (WCA) of the FeSe2 particles increases by 6.1° and the water sliding angle (WSA) decreases by 2.5° respectively, and the diffuse reflectivity decreases 29.4% compared with similar FeSe2 particles synthesized by the conventional method. The growth process of the particles is analyzed and a growth scenario is given. Upon altering the PH values of the water, we observe that the superhydrophobic property is maintained quite consistently across a wide PH range of 1–14. Moreover, the modified particles were also found to be superoleophobic. To the best of our knowledge, there is no systematic research on the wettability of FeSe2 particles, so our research provides a reference for other researchers.
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Received: 31 May 2013
Revised: 14 August 2013
Accepted manuscript online:
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PACS:
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68.08.Bc
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(Wetting)
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68.08.-p
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(Liquid-solid interfaces)
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81.07.Bc
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(Nanocrystalline materials)
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Fund: Project supported by the Natural Science Foundation of Anhui Province, China (Grant No. 12010202035) and the National Natural Science Foundation of China (Grant No. 51272246). |
Corresponding Authors:
Xu Xiao-Liang
E-mail: xlxu@ustc.edu.cn
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Cite this article:
Yu Jing (郁菁), Wang Hui-Jie (王会杰), Shao Wei-Jia (邵伟佳), Xu Xiao-Liang (许小亮) Superamphiphobic, light-trapping FeSe2 particles with a micro-nano hierarchical structure obtained by an improved solvothermal method 2014 Chin. Phys. B 23 016803
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