Abstract:With the purpose of searching for a convenient process to synthesize nanoparticles with special structure, a simple solid-state reaction in the presence of nonionic surfactant OP-10 at room temperature was adopted to prepare copper nitrate hydroxide (Cu₂(OH)₃NO₃) nanorings with an average internal diameter of 250 nm and average wall thickness of 100 nm. The formation of Cu₂(OH)₃NO₃ nanorings has a close relation with OP-10. Transmission electron microscopy(TEM), field emission scanning electron microscopy(FESEM), thermogravimetric analysis(TGA) and X-ray diffractometry(XRD) were used to characterize the obtained nanorings. The UV-Vis spectrum shows that the optical property of Cu₂(OH)₃NO₃ nanorings is similar to that of CuO or CuS. The synthesis method used here proves both simplicity and high efficiency.

Key words: copper nitrate hydroxide; solid-state reaction; nanorings