Green Synthesis and Characterization of Zinc Oxide Nanoparticles by using Centella asiatica Plant Extract
DOI:
https://doi.org/10.11113/jomalisc.v2.36Keywords:
Green synthesis, Centalla asiatica, ZnO-NPs, nanoparticlesAbstract
Green synthesis is an environmentally friendly way of producing nanoparticles that avoids the use of harmful chemicals, high temperatures, and expensive equipment in standard physical and chemical synthesis processes. In the current work, an environmentally friendly method was employed to produce zinc oxide nanoparticles (ZnO-NPs) using Centella asiatica leaf extract that act as a reducing agent. Fourier Transform Infrared Spectrometer (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Ultraviolet-Visible (UV–Vis) spectroscopy were used to characterise the synthesized ZnO-NPs. From FTIR, the peaks at wavenumber 650 cm-1 and 415 cm-1 represent Zn-O stretching. Through X-ray diffractograms, 11 peaks appear for ZnO-NPs, and the most intense peaks (100), (002) and (101) represent hexagonal quartzite structure. SEM images revealed the smallest size range of ZnO-NPs obtained is about 100 nm to 200 nm with mixtures of rod-like and spherical shapes. The Surface Plasmon Resonance (SPR) of ZnO-NPs exhibited at 375 nm. In conclusion, the green synthesis approach is quick, cheap, and environmentally friendly, and it produces stable ZnO-NPs comparable with chemical synthesis ZnO-NPs and has a variety of industrial and environmental applications.
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