Catalyst-Free Synthesis of Hollow-Sphere-Like ZnO and Its Photoluminescence Property

الملخص EN

Hollow-sphere-like ZnO was successfully prepared by a facile combustion route at 950°C, and no external catalysts or additives were introduced.

The morphology and structure of the hollow-sphere-like ZnO were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and energy dispersive spectrometer (EDS).

The possible growth mechanism was discussed in detail.

In addition, the as-obtained hollow-sphere-like ZnO exhibited a strong green emission at 518 nm and a weak UV emission at 385 nm.

We believe that the hollow-sphere-like ZnO material may be a good candidate for application in optical devices and catalyst systems.