https://doi.org/10.1140/epjp/s13360-024-05920-7
Regular Article
Potential biological and optoelectronic applications of AgO:ZnO nanocomposite synthesized by green approach
1
University of Baghdad, College of Education for pure science /Ibn-AlHaitham, Baghdad, Iraq
2
Centre for Nano and Material Sciences (CNMS), Jain University Global Campus, Jakkasandra Post Kanakpura Road, 562112, Ramanagaram, Bangalore, India
3
Department of Physics, College of Science, Mustansiriyah University, Baghdad, Iraq
a
raghad.almaliki@uomustansiriyah.edu.iq
Received:
30
June
2024
Accepted:
11
December
2024
Published online:
21
December
2024
This study aimed to estimate the potential optoelectronic and biological properties of AgO:ZnO nanocomposite synthesized by an environmentally friendly method. The synthesis of nanocomposite was carried out by reducing silver nitrate with Salvia hispanica extra, and zinc nitrate was mixed to produce the nanocomposite. An extensive examination was carried out on the physical and biological characteristics of the synthesized nanocomposite using several approaches. The EDX analysis confirmed the purity of the synthesized sample via the presence of elements Ag, Zn, and O only in the nanocomposite. The crystal structure of nanocomposite with hexagonal phase and average crystallite size of 56.8 nm was confirmed by X-ray diffraction. The formation of fibrous AgO:ZnO nanoparticles with an average diameter of 1.021 ± 0.6 μm was indicated by field-emission scanning electron microscopy examination. The optical property investigation revealed that the nanocomposite had a wide absorption band with an absorption peak at 425 nm. The observed phenomenon was attributable to the occurrence of electronic transitions within the material. The direct bandgap energy of 2.90 eV and the Urbach energy of 0.456 eV for the nanocomposite demonstrated the presence of defect states in the bandgap region. The measured values of the conduction band edge (ECB) and valence band edge (EVB) additionally revealed the material’s electronic structure. The biological potential of AgO:ZnO nanocomposite was evaluated by the agar well diffusion technique against Gram-positive and Gram-negative bacteria and a fungus. The extensive investigation of the AgO:ZnO nanocomposite’s characteristics has shown its potential for use in a wide range of photonic, optoelectronic, and biological applications.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.