ABSTRACT

Nowadays green technology plays the major role for generating the nanoparticles towards the researchers with low cost method. Copper sulphate 0.1M and neem extract was made as a bulk solution.150ml of neem extract and 50ml of copper sulphate is taken and mixed it well and thus the solution is taken in the beaker. Green Synthesis and Characterisation of Copper Oxide Nanoparticles using Azadirachta indica (Neem) Leaf Aqueous Extract can reduce copper ions into copper nano particles within 5 minutes of reaction time and brown coloured precipitate settling down. The biosynthesized nanoparticles of copper oxide are characterized through UV- Vis spectra, FT-IR, and XRD. In UV-Vis spectra a peak was obtained at 346 nm due to inter band transition of core electrons and band gap energy of 2.65 eV was observed through tauc plot. Sharp peak at 480.42 and 538.80 cm-1 in FT-IR spectrum is due to Cu-O bond. CuO Nano particle is crystalline and identical to simple cubic. The particle sizes of CuO NPs are found in different sizes range of 49 nm, 87 nm, 120 nm and 324 nm. Keywords: Copper Oxide Nanoparticles, Green Synthesis, Neem Leaf (Azadirachta indica)
Publication date: 01/03/2024

https://ijbpas.com/pdf/2024/March/MS_IJBPAS_2024_7857.pdf

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https://doi.org/10.31032/IJBPAS/2024/13.3.7857