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Synthesis and Catalytic Applications of Ultrasmall Copper Nanoparticles Using Aloe Vera Plant Extract
preprintsubmitted on 04.11.2020, 17:42 and posted on 05.11.2020, 08:56 by Rajagopal Ramkumar, Shradha Sapru, Panthalattu Parambil Archana
An extract of Aloe Vera acts as a powerful reducing agent for the synthesis of ultrasmall copper nanoparticles (CuNPs) in water medium. The prepared copper nanoparticles are characterized by XRD, HRTEM and UV-Vis analysis. The diameter of the prepared nanoparticle is less than 5 nm. The catalytic activity of CuNPs has been successfully evaluated for the three-component reaction to synthesize 1,2,3-triazoles and chalcone tethered 1,2,3-triazoles with low catalyst loading and under mild reaction conditions. These triazoles are further utilized for the synthesis of dihydropyrazines.