Controlled synthesis and morphology evolution of nickel sulfide micro/nanostructure

A facile hydrothermal method has been developed for synthesis of nickel sulfide micro/nanostructure using Ni(NO3)(2)center dot 6H(2)O as nickel source, S=C(NH2)(2) as sulfur source and 1,2-ethylenediamin/sodium dodecyl sulfate as surfactant. Different morphologies such as petal-, urchin- and sphere-like nickel sulfide structures have been synthesized by tuning the reaction time, reaction temperature, and the surfactant. The as-prepared products were characterized by X-ray diffraction, Field-emission scanning electron microscope, and Photoluminescence spectra. The relationship of the fluorescence properties with their morphology and phase was studied, and the possible growth mechanism of nickel sulfide structure was proposed based on the morphology evolution of nickel sulfide. (C) 2010 Elsevier B.V. All rights reserved.