Solution Methods to Prepare CuO Nanostructures

CuO nanoproducts could be prepared by various methods such as sol-gel, spray pyrolysis, precipitation, solvothermal or sonochemical methods. Each technique more or less has some limitations; for example, solvothermal could be used to prepare material in extreme conditions such as high temperature and high pressure; the wrong side is that it takes quite a long time, the sol-gel process is quite complicated, and there are so many parameters need to be controlled. Among the methods that could be applied to synthesize nanomaterials, the microwave irradiation method, which is a chemistry-physics combined method, currently shows its many advantages and cuts down the number of limitations usually brought by other methods. Microwave energy is a very efficient means of heating. Chemical reactions that took a long time to complete can now be accomplished in minutes using a microwave. Microwave-assisted synthesis helps implement green chemistry and leads to a revolution in organic synthesis. Microwave irradiation is well known to promote the synthesis of various compounds, where chemical reactions are accelerated because of polar molecules' selective absorption of microwaves. It was found that the main advantages of the microwave irradiation method compared with the conventional method are that it is fast, mild, energy-efficient, and friendly to the environment. The preeminent advantages of microwaves can explain the effectiveness of microwave irradiation in preparing nanoparticles for heating. The mechanism of the traditional heating process is conductive heat or heating by convection currents. Hence, this is a slow and energy-inefficient process due to the energy lost at the wall of the vessel. Usually, the ship's wall absorbs heat first; then, heat is transferred to the liquid inside, so the temperature of the outside surface needs to be more than the boiling point of the liquid for the temperature inside the liquid volume to reach boiling point. Applying the microwave technique can easily overcome these disadvantages because when heating with a microwave, the vessel wall is transparent, and the solvent/reagent absorbs microwave energy directly. The direct in-core heating and instant on-off pulse of heat lead to the formation of a homogenous temperature gradient and reduce the time reaction. These advances, in turn, produce smaller particles of uniform size and shape. Different nanostructures of CuO of uniform size and shape using microwave irradiation could be prepared in a few minutes. If you are looking for high quality, high purity, and cost-effective copper oxide, or if you require the latest price, please email contact mis-asia.

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