Green Luminescent Copper Nanoparticles

International Conference on Advances in Materials and Manufacturing Applications 2016

Suresh, Y.^1 ; Annapurna, S.^2 ; Bhikshamaiah, G.^1 ; Singh, A.K.^3

Dept. of Physics, Osmania University, Hyderabad

500007, India^1

Dept. of Physics, Osmania University, College for Women, Hyderabad

500095, India^2

Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad

500058, India^3

关键词: Copper nanoparticles;    Green chemicals;    Green synthesis;    Natural extracts;    Particles sizes;    Photoluminescence measurements;    Photoluminescence spectrum;    Visible emissions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012187/pdf
DOI  :  10.1088/1757-899X/149/1/012187

来源: IOP

【 摘 要 】

Copper nanoparticles are synthesized by a green chemical reduction method using Gum Kondagogu extract as stabilizer. The as-prepared powder samples are characterized by Transmission Electron Microscopy (TEM), Small Angle X-Ray Scattering (SAXS), UV-Visible Spectroscopy, X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) techniques. The as-prepared copper nanoparticles are found to be FCC crystalline and nearly monodispersed with particles size 19 nm. Photoluminescence (PL) measurement showed strong green visible emission and PL intensity was found enhanced with the presence of natural extract on copper nanoparticle surface. The increase in the PL intensity was mainly due to copper nanoparticles. Photoluminescence spectra of copper nanoparticles show an emission peak at 430 nm when illuminated at 325 nm.