CdS和CdSe新型纳米结构的高效溶剂热合成

A Highly Efficient Solvothermal Route towards Starfish-shaped CdS Nanostructures and CdSe Nanowires

采用快速高效的溶剂热法合成了海星形CdS纳米结构和一维CdSe纳米结构。用XRD、SEM和UV-Vis等表征手段对产物进行了表征,结果表明产物为单一的CdS和CdSe纳米结构,且CdS纳米结构具有良好的分散性,其形成极大地受到pH值影响,而CdSe先形成层状的二维结构、再形成一维纳米结构。

Starfish-shaped CdS nanostructures and CdSe nanowires were synthesized through highly efficient solvothermal route. The prepared nanostructures were characterized by X-ray diffraction （XRD）, scanning electron microscope （SEM） and ultraviolet-visible spectroscopy （UV-Vis）. The effect of pH on the morphology of nanostructures and the growth mechanism of CdSe nanowires was investigated. It can be concluded that pure CdS and CdSe nanostructures with high monodispersity can be successfully synthesized, and the pH has great effect on the formation of CdS nanostructure. Meanwhile, layered structures were considered a kind of intermediate in the growth of CdSe nanowires.