Abstract

In this paper, a new core–shell nanostructure is proposed which is based on ZnS microspheres but the core and shell nanostructures are different. The conversion from such core–shell ZnS nanostructures to Zn(S,O)@ZnS ones and porous ZnO microspheres has been established by annealing ZnS microspheres in air atmosphere and investigated in detail by X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron diffraction. During the conversion, both physical and chemical performances such as optical and photocatalytic properties can be tuned and enhanced.

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