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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Self-assembled ZnS nanostructured spheres: Controllable crystal phase and morphology
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Self-assembled ZnS nanostructured spheres: Controllable crystal phase and morphology

机译：自组装的ZnS纳米结构球：可控制的晶相和形态

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摘要

We report a simple biomolecule-assisted synthesis of ZnS nanostructured spheres assembled from ZnS nanocrystals with the controllable crystal phase and morphology. L-Cysteine, a biomolecule, was used as the sulfur source and played a key role in the formation of ZnS nanostructured spheres. ZnS nanostructured spheres assembled from various ZnS nanocrystal building blocks, such as nanosheets, quantum dots, nanorods, and multimorphology nanocrystals, were successfully prepared by this simple method. The crystal phase of ZnS nanostructured spheres could be controlled by introducing ethanolamine or ethanediamine as a surface-modifying reagent in this synthetic system. The hexagonal ZnS nanocrystals were obtained in mixed solvents of water and ethanolamine at temperature as low as 95 degrees C. The growth mechanism of the nanostructured spheres assembled from nanorods was proposed. The optical properties of ZnS nanostructured spheres were investigated by ultraviolet-visible (UV-vis) absorption and photoluminescence (PL) spectra.
机译：我们报告了一个简单的生物分子辅助合成的ZnS纳米结构球体，由ZnS纳米晶体组装而成，具有可控的晶体相和形态。 L-半胱氨酸，一种生物分子，被用作硫源，在ZnS纳米结构球的形成中起着关键作用。通过这种简单的方法成功地制备了由各种ZnS纳米晶体构件（如纳米片，量子点，纳米棒和多形态纳米晶体）组装而成的ZnS纳米结构球。可以通过在该合成系统中引入乙醇胺或乙二胺作为表面改性剂来控制ZnS纳米结构球的晶相。在水和乙醇胺的混合溶剂中于低至95摄氏度的温度下获得了六方晶状的ZnS纳米晶体。提出了由纳米棒组装而成的纳米结构球的生长机理。 ZnS纳米结构球的光学性质通过紫外-可见（UV-vis）吸收和光致发光（PL）光谱进行了研究。

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