Growth of porous ZnO nanosheets by electrodeposition with Zn4SO4(OH)6·4H2O as precursor

Abstract

In this paper, petal-like porous ZnO nanosheets were prepared by indirect electrodeposition with Zn4SO4(OH)6·4H2O (ZSH4) as precursor. Petal-like ZSH4 nanosheets were firstly electrodeposited by adding K2SO4 into the electrolyte of Zn(NO3)2 solution and the growth process of ZSH4 nanosheets was also studied. After heat treatment, it is of great interest that the overall morphology of ZSH4 nanosheets was well maintained but ZSH4 nanosheets were completely converted to the porous ZnO nanosheets composed of the ZnO nanoparticles with about 50–100nm in size. As preliminary application, the photocatalytic ability of porous ZnO nanosheets was investigated. Since porous ZnO nanosheets possess large surface area, it is expected to be widely applied in sensors, photocatalysis and photoelectrochemical cells.