Abstract
Two‐dimensional (2D) CuO nanoplatelets were synthesized in the presence of ionic liquids under the mild hydrothermal conditions at 140°C by self‐assembly. The thickness of CuO nanoplatelets was about 35 nm prepared in 1‐butyl‐3‐methylimidazolium chloride. XRD, FESEM, and TEM were used to characterize the structure features of the products. FTIR spectra and TG curves confirmed the adsorption of ionic liquids on the surface of CuO nanoplatelets. In addition, UV‐visible absorption spectra were employed to estimate the band gap energies of the CuO nanoplatelets as nanosized semiconductors. It was demonstrated that the ionic liquids could act as a cosolvent, soft template agent and modifiers.
Acknowledgments
This work was supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20050217019) and Basic Research Foundation of Harbin Engineering University, China (No. HEUFT05018).