ENHANCING THE PROPERTY OF METAL OXIDE NANOPARTICLES BY USING GREEN SYNTHESIS METHODS

Author (s) : K.Jayanthi, M.Anandan & N.Janani

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Abstract :
Nanotechnology has gain much attention due to the unique properties possessed by nanomaterials compared to the bulk materials. By combining nanochemistry with natural products, properties of nanoparticles can be enhanced. Here, we report the synthesis of copper oxide nanoparticles using a green synthesis method and applications of these nanoparticles to gauge their enhanced properties comparative to the chemically synthesized counterparts. Copper oxide nanoparticles were synthesized by co-precipitation method using Spondias dulcis and Coriandrum sativum extracts and characterized by using FTIR and UV-vis spectroscopy and Scanning electron microscopy. Photocatalytic degradation of dye molecules by CuO nanoparticles was investigated using Rhodamine B as the dye. Usually, when CuO nanoparticles are used in photocatalytic degradation of Rhodamines, hydrogen peroxide is added to generate hydroxyl radicals and it takes few hours to bleach the colour. Further, in the absence of hydrogen peroxide, copper oxide nanoparticles are not as effective as a photocatalyst for dyes. Interestingly, we found the CuO nanoparticles synthesized with Coriandrum sativum extracts are capable of bleaching the colour of Rhodamine B solutions within 15 min when irradiated under UV light or sunlight without adding hydrogen peroxide. Copper oxide nanoparticles synthesized using Coriandrum sativum seed and fresh leaf mixtures showed best results. Our study demonstrate that careful combination of nanoparticles and plant extracts can enhance the usefulness of nanoparticles and with enhanced properties we expect that our green synthesized nanoparticles can become useful candidates in various applications where the nanoparticles synthesized with chemical methods show limitations.

Keywords : Green synthesis, Coriandrum sativum, Spondias dulcis, Copper oxide nanoparticles

Conference Date : 17/09/2021

Pages : 279

Paper ID : IESMDT277