A review on microwave assisted synthesis of some nanoparticles

Microwave-assisted synthesis is popular in areas ranging from biochemical processes to nanotechnology Chemical reactions are often faster than traditional reflux condenser heating methods, and have higher yields and fewer side products. Current microwave reactors provide excellent control over reaction mixing, withstand high temperatures and pressures, and demonstrate exceptional reproducibility from reaction-to-reaction. Speed and efficiency are aided by the direct heating of the reaction mixture, heating solvents beyond their boiling points at high pressure, and uniform heating profiles. In this review paper, the colloid of silver (Ag), gold (Au), platinum (Pt), and gold–palladium (Au–Pd) nanoparticles has been prepared by a low cost microwave technique where microwave radiation was used as a heating source. Compared to a thermal heating method, microwave radiation gave a much faster reaction. MW-assisted methods have been employed for the convenient and reproducible synthesis of well-defined noble and transition core−shell metallic nanoparticles with tunable shell thicknesses. Some of the distinctive attributes of MW-selective heating in the synthesis and applications of magnetic nanocatalysts in organic synthesis under benign reaction conditions are highlighted. ustainable nanomaterials and their applications in benign media are an ideal blend for the development of greener methodologies in organic synthesis; MW heating provides superb value to the overall sustainable process development via process intensification including the flow systems.