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The synthesis of superhydrophobic Bi2S3 complex nanostructures

机译:超疏水Bi2S3复合纳米结构的合成

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摘要

In this paper, we report a biomolecule-assisted soft chemistry route for constructing complex Bi2S3 nanostructures that exhibit controlled wetting behavior. The as-synthesized sample was characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), field emission SEM (FE-SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), Fourier transform infrared (FT-IR), Raman, x-ray photoelectron (XPS) and photoluminescence (PL). The Raman spectra indicate that the surface optical (SO) phonon mode occurs in Bi2S3 nanoparticles. The SO phonon mode is attributed to the defects on the surface of Bi2S3 nanoparticles. In addition, the possible formation mechanism of the self-assembled urchin-like Bi2S3 complex nanostructures is discussed. The established complex nanostructure can control the surface topology of a membrane to create a superhydrophobic surface. A water contact angle (CA) of >150 of the as-synthesized Bi2S3 complex nanostructures can be obtained, which may find potential application in environmental chemistry.
机译:在本文中,我们报告了一种生物分子辅助的软化学路线,用于构建表现出受控润湿行为的复杂Bi2S3纳米结构。合成后的样品通过X射线衍射(XRD),扫描电子显微镜(SEM),场发射SEM(FE-SEM),透射电子显微镜(TEM),高分辨率TEM(HRTEM),傅立叶变换红外光谱进行表征(FT-IR),拉曼,X射线光电子(XPS)和光致发光(PL)。拉曼光谱表明表面光学(SO)声子模式出现在Bi2S3纳米粒子中。 SO声子模式归因于Bi 2 S 3纳米颗粒表面上的缺陷。此外,还讨论了自组装的类似Urchin的Bi2S3复合纳米结构的可能形成机理。建立的复杂纳米结构可以控制膜的表面拓扑,以产生超疏水表面。合成后的Bi2S3复合纳米结构的水接触角(CA)> 150,可以在环境化学中找到潜在的应用。

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