In this work, CuI micro/nanostructures have been successfully prepared via a simple precipitation route at room temperature. By using glucose as a clean reducing agent with different concentrations, CuI micro/nanostructures with various morphologies were obtained. Besides glucose, Na2SO3, KBH4 and N2H4 center dot H2O have been applied as reductant. X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence spectroscopy, X-ray energy dispersive spectroscopy (EDS) and Fourier transformed infrared (FT-IR) spectroscopy were used to characterize the as-produced Cut micro/nanostructures. According to the XRD results, it was found that pure cubic phase CuI have been formed by using glucose. (C) 2013 Elsevier Ltd. All rights reserved.