Indian Ber & Jamun Seeds Mediated Preparation of Zn2+ Doped MgO Nanoparticles and Study Its Structural and Optical Properties


Nanotechnology is currently a flourishing field provides a novel way to fabricate nanoparticles exploring biological sources. The present study is devoted to doping Zn2+ in MgO nanoparticles. Synthesized via green synthesis method using Indian ber seed and Jamun seed extract, were calcined at 450˚C to get the Zn2+ doped MgO nanoparticles. The crystalline nature and particle size of the samples were characterized by X-ray diffraction analysis (XRD). The presence of the functional group in the sample is investigated using FTIR. The morphology of samples was studied by scanning electron microscope (SEM) and the presence of Zn in the sample was confirmed by energy dispersive X-ray analysis (EDX). The optical band gap of the Zn2+ doped MgO nanoparticles sample was studied by UV-Vis spectroscopy. Optical band gap energy was found 3.10 eV with Zn2+ doped MgO. SEM image of Zn2+ doped MgO particles was obtained morphology of Zn2+ doped MgO structures. Most of these structures have diameters of 20-70 nm. The optical properties of the samples were investigated using photoluminescence spectroscopy (PL) analysis to obtain excitation and emission spectra of the samples and absorption near 335 nm and emission bands attributed to defects were observed in the PL spectra. Energy dispersive X-ray spectroscopy (EDAX) define the presence of elemental metal signal (magnesium, zinc and oxygen) was confirmed.

Keywords: – Green Synthesis, Optical Properties, Nanomaterials.

1Preetam Singh Gour, 2Shikha Munjal, 3Pankaj Srivastava, 4Nitin P. Singh