Bibliographic citations
Izáziga, J., (2023). Propiedades estructurales y ópticas de Nanopartículas de ZnO sintetizadas con diferentes concentraciones de extracto alcohólico de semilla de Caesalpinia spinosa [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/19580
Izáziga, J., Propiedades estructurales y ópticas de Nanopartículas de ZnO sintetizadas con diferentes concentraciones de extracto alcohólico de semilla de Caesalpinia spinosa []. PE: Universidad Nacional de Trujillo; 2023. https://hdl.handle.net/20.500.14414/19580
@misc{renati/1045880,
title = "Propiedades estructurales y ópticas de Nanopartículas de ZnO sintetizadas con diferentes concentraciones de extracto alcohólico de semilla de Caesalpinia spinosa",
author = "Izáziga Rodríguez, José Daniel",
publisher = "Universidad Nacional de Trujillo",
year = "2023"
}
ABSTRACT ZnO nanoparticles were synthesized by green synthesis using alcoholic extract of Caesalpinia spi nosa seeds as a reducing and stabilizing agent, being characterized by X-ray diffraction, Raman Spectroscopy, UV-Visible Spectrophotometry, Photoluminescence Spectroscopy, Scanning Elec tron Microscopy and Energy Dispersive Spectroscopy. The X-ray diffractograms confirmed the obtaining of wurzite phase ZnO nanoparticles with a hexagonal structure, with the presence of a secondary Zn(OH)2 phase. The Raman spectra corroborate the obtaining of the ZnO nanoparticles. The X-ray diffractograms showed that the crystallite size was between 22.76 and 24.65 nm. No dependence of the average crystallite size of the nanoparticles on the seed concentration in the alcoholic extract was observed. The UV-Visible Spectroscopy results show that the nanoparticles absorb minimally in the visible range, but absorb strongly in the ultraviolet range. The synthesized ZnO nanoparticles have a fairly defined exciton peak with a minimum value of 363 nm for 0.5 g of Caesalpinia spinosa seed and a bandgap width of 3.29 eV. The photoluminescence spectra show the expected luminescent behavior of ZnO, also observing dependence on the excitation wavelength. Scanning Electron Microscopy showed that the nanoparticles have a spherical morphology without much aggregation between them with an average value for the size of the nanoparticles smaller than 29 nm. Therefore, this research shows an ecological, efficient and simple alternative for the synthesis of ZnO nanoparticles with the ability to modify their properties
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