Sonochemical synthesis of CuO nanostructures with different morphology

Abstract

This paper describes a highly efficient and rapid approach of synthesizing different CuO nanostructures in aqueous solutions using ultrasound irradiation of copper(II) acetate with urea/sodium hydroxide in the presence of polyvinylpyrrolidone (PVP), as stabilizing polymer. Field emission scanning electron microscope images clearly indicate the formation of CuO quasi-spherical microarchitectures and long-straw like structure in the presence of urea and sodium hydroxide. Other characterization techniques such as TEM, XRD and XPS are also provided to support the formation of such structures. One of the reasons for the formation of such CuO nanostructures may be due to the formation of a polymer-metal complex with the stabilizing polymer (PVP).

A procedure for processing of pregnant leach solution (PLS) produced from a chalcopyrite-ore bio-heap: CuO Nano-powder fabrication

“…Jia et al (2009) have described a promising method to synthesize CuO nanospheres by using urea (0.025 M) and copper acetate (0.025 M), the heating of which at 121 ˚C for 40 min has produced the nano-spheres. Usual methods have been recently reported for production of CuO nano/micro-structures, some of which are: high temperature decomposition (Bakhtiari and Darezereshki, 2011), electro-deposition (Modaresi et al, 2015), gas-solid reaction (Dianzeng et al, 1998), and sonochemical synthesis (Anandan et al, 2012). The disadvantages of the mentioned methods are reactions in high temperatures, long reaction times, expensive apparatus, or complex process.…”

Synthesis and Characterization of CuO, TiO2, and CuO-TiO2Mixed Oxide by a Modified Oxalate Route

“…Preparation of highquality nanocrystals of desired size is a prerequisite for investigating and utilising their size-dependent properties. Various approaches such as chemical precipitation [9], solgel method [10,25,26], hydrothermal method [6,27], 2 Journal of Applied Chemistry microwave-assisted method [28], sonochemical synthesis [29], and solvothermal synthesis [30] have been reported for the synthesis of uniform-sized (or monodisperse) metal oxide and metal oxide nanocomposites with diverse morphologies. Titanium oxide is found in three different crystalline forms: rutile, anatase, and brookite.…”

Sonochemical synthesis of monodispersed perovskite barium zirconate (BaZrO3) by using an ethanol–water mixed solvent

“…This research provides an interesting chemical process in the sonochemical method, which improved recently with the introduction of ultrasonic wave into the vessels of reaction solution to produce ceramic materials more rapidly. The sonochemical method can be employed to synthesize metallic and organic covers, and especially almost all inorganic nanoparticles, in a short period of time [10][11][12][13]. Many research works have proved recently that the properties of solvent are an important parameter in the desired product particles [14][15][16].…”