Preparation of Porous ZnO Sheet in Aniline-Water Mixed Solvents and Its Application.

ABSTRACT

In this paper, porous ZnO sheet with an average pore size of 14.7 nm had been successfully prepared via mixed solvent thermal method without any surfactants. The mixed solvents were made up of water and aniline. The effect of calcination temperature on the structure was investigated. The results showed that when the calcination temperature was 350 °C, the porous structure formed and the borders of the as-formed porous structure sheets were heavily regular and straight. The photocatalytic properties of products were studied through detecting the degradation efficiency of RhB under the 500 W mercury lamp irradiation. The effects of calcination temperature and catalyst concentration of the products on photocatalytic efficiency were investigated in detail. When the precursor was calcined at 350 °C for 4 h, the photodegradation efficiency of RhB can be up to 100% after irradiating for 60 min. The morphologies and compositions of the as-prepared products were characterized via transmission electron microscopy (TEM) and X-ray diffraction (XRD).