UTILIZATION OF BIOWASTE (Allium cepa L PEEL EXTRACT) FOR THE SYNTHESIS OF MgO-NPs FOR THEIR ENERGY HARVESTING POTENTIALS
DOI:
https://doi.org/10.5281/zenodo.20191778Keywords:
Green synthesis, biowaste utilization, MgO nanoparticles, Allium cepa, energy harvestingAbstract
The synthesis of Magnesium oxide nanoparticles (MgO-NPs) with the use of Allium cepa L (onion) peel waste is a promising alternative to traditional chemical methods. The Allium cepa L peel extract was used as a substrate for the synthesis of MgO-NPs using bottom-up approach. The extract phytochemically screened, demonstrated the presence of saponins, alkaloids, flavonoids, phenolics, and other bioactive compounds, which enhance and act as a bio-reductants to MgO-NPs formation. The biosynthesized MgO-NPs were investigated for optical properties, functional moieties, crystallinity state, elemental constituents, morphology, particle size and their energy harvesting abilities using UV-Visible spectrophotometry, Fourier Transform Infrared Spectrophotometry (FTIR), Energy Dispersive Spectrometry (EDX), Transmission Electron Microscopy (TEM), Scanning electron microscopy (SEM) and Tauc’s plot respectively. UV-Visible spectrum revealed that MgO-NPs showed maximum absorption at wavelength of 241nm in the ultraviolet region. FTIR results showed prominent peaks at 3464cm-1, 3360cm-1 represents stretching vibration of O-H group. The peaks at 1592cm-1, 1171 cm-1 represents the stretching vibration of aromatic C=C bond. EDX results revealed the elemental composition in percentages of the elements in the nanoparticles, showing Mg (69.96%, 3.85 keV), O (26.67 %, 1.09 keV) and C (8.34 %, 1.26 keV). PXRD revealed a crystalline, cubid shaped with porous surface for SEM. The particle size (average) of the nanoparticles as characterized by TEM were found to be 63 nm. The band gap energy was calculated using Tauc’s plot to be 3.57 eV.
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Akpeji, B. H., Emegha, M. C., Onyenue, E. E., Meshack, O. Q., & Elemike, E. E. (2024a). Synthesis and characterization of nanoparticles of ZnO, carbon dot and ZnO–carbon dot nanocomposite from groundnut shell wastes. Journal of Applied Science and Environmental Management, 28(6), 1771–1780. https://doi.org/10.4314/jasem.v28i6.16.
Akpeji, B. H., Laric, B., Igbuku, U. A., Tesi, G. O., Elemike, E. E., & Akusu, P. O. (2024b). Synthesis and characterization of MnO₂ nanoparticles mediated by RHS. Journal of the Nigerian Society of Physical Sciences, 6, 2203. https://doi.org/10.46481/jnsps.2024.2203.
Akpeji, B. H., Okhuarobo, L. O., Akakabota, A. O., Okologume, J. O., & Osio, O. L. (2025). Conversion of plastic polymeric wastes into carbon dots: A sustainable approach. Anchor University Journal of Science and Technology, 6(2), 187–192. https://doi.org/10.4314/aujst.v6i2.2.
Akpeji, B. H., Singh, V. (2026). Synthesis and characterization of magnesium oxide nanoparticles (MgO NPs) derived from RHSs (RHS) and evaluation of their nano-pharmacokinetic properties. Discover Chemistry, 3, 129. https://doi.org/10.1007/s44371-026-00597-6.
Akpeji B. H., Nwabuoku D. A, Adedokun J. (2024). Green Corrosion Inhibition: Utilizing Banana Pseudo-Stem Extract to Protect Mild Steel in Acidic Environments. Acta Chemica Malaysia (ACMY) 8(2) (2024) 43-62. DOI: http://doi.org/10.26480/acmy.02.2024.43.62.
Agarwal, H., Venkat Kumar, S., & Rajeshkumar, S. (2017). A review on green synthesis of zinc oxide nanoparticles–an eco-friendly approach. Resource-Efficient Technologies, 3(4), 406-413.
Ahed, M. A., Omar, A. L., Husam, H. A., & Mahmoud, A. (2023). Investigation of optical and electrical properties of copper oxide - polyvinyl alcohol nanocomposites for solar cell applications. Arabian Journal of Chemistry, 16(4), 104535. https://doi.org/10.1016/j.arabjc.2022.104535
Aduloju, K. A. (2022). Dye sensitized solar cell using natural dyes extracted from red leave onion. International Journal of Physical Sciences, 7(5), 748-752. https://doi.org/10.5897/IJPS11.1095
Ahmad, S., Guillén, E., Kavan, L., Grätzel, M., and Nazeeruddin, M. K. (2019). Metal free sensitizer and catalyst for dye sensitized solar cells. Energy and Environmental Science, 6(12), 3439-3466. https://doi.org/10.1039/c3ee41888j
Bello, M., Sani, M., and Gimba, C. E. (2020). Green synthesis of NiO and CuO–NiOm nanocomposites using Allium cepa and their antibacterial activity. Journal of Nanostructure in Chemistry, 10(2), 255–264. https://doi.org/10.1007/s40097-019-00324
Chandran, S. P., Makarov, V. V., Chen, W. H., Ma, D. L., & Leung, C. H. (2022). Green biosynthesis of metal oxide nanoparticles and their energy storage applications. ACS Omega, 7(6), 5055–5068. https://doi.org/10.1021/acsomega.1c06399
Chen, R., Zhou, Y., Yu, X., & Wu, S. (2021). Structural and electrochemical insights into CuO-based nanomaterials for high-performance supercapacitors. Electrochimica Acta, 389, 138738. https://doi.org/10.1016/j.electacta.2021.138738
Elemike E.E., Onwudiwe D.C., Wei L., Lou C., Zhao Z., (2019). Synthesis of nanostructured ZnO, Ag-ZnO and the composites with reduced graphene oxide (rGO-AgZnO) using leaf extract of stingmaphyllon ovatum. Journal of environmental Chemical Engineering 7(3), 103190.
Hosseinnezhad, M., Gharanjig, K., Yazdi, M. K., Zarrintaj, P., Moradian, S., Saeb, M. R. and Stadler, F. J. (2020). Dye-sensitized solar cells based on natural photosensitizers: A green view from Iran. Journal of Alloys and Compounds, 828: 154329.
Gurunathan, S., Qasim, M., Choi, Y., & Kim, J. H. (2020). Antioxidant, anti-inflammatory, and anticancer potential of biosynthesized copper oxide nanoparticles. International Journal of Nanomedicine, 15, 9241–9258. https://doi.org/10.2147/IJN.S267456
Ikhioya, O. A., Agboola, M. E., and Ogunbanwo, S. T. (2023). Green synthesis and electrochemical evaluation of copper oxide nanoparticles from Moringa oleifera for energy applications. Journal of Nanoscience and Nanotechnology, 23(3), 215–224. https://doi.org/10.1166/jnn.2023.202304215.
Ikhuoria, E.U., Uwidia, I.E., Otabor, G.O., and Ifijen, I.H. (2023). Comparative analysis of magnesium oxide nanoparticles biosynthesized from rubber seed shell and rubber leaf extracts. Biomedical Materials and devices. https://doi.org/10.1007/s44174-023-00139-z.
Ituen, E., Singh, A., Yuanhua, L. and Li, R. (2020). Synthesis and evaluation of anticorrosion properties of onion mesocarp-nickel nano composites on X80 steel in acidic cleaning solution. Journal of Materials Research and Technology, 9(3): 2832-2845.
Ituen, E. B., and Archibong, U. J. (2022). Onion peel dye-nanocomposite as light harvester in dye-sensitized solar cells. World Journal of Applied Science and Technology, 14(1), 25-37. https://doi.org/10.4314/wojast.v14i1.4
Jalali, T., Arkian, P., Golshan, M., Jalali, M. and Osfouri, S. (2020). Performance evaluation of natural native dyes as photosensitizer in dye-sensitized solar cells. Optical Materials, 110: 110441.
Jawed, A., Golder, A., and Pandey, L. (2023). Synthesis of iron oxide nanoparticles mediated by Camellia sinensis varassamica for Cr(VI) adsorption and detoxification. Bioresource technology, 128816 . https://doi.org/10.1016/j.biortech.2023.128816.
Kabir, F., Bhuiyan, M. M. H., Hossain, M. R., Bashar, M. S., Rahaman, M. S., Manir, M. S., and Ahmed, F. (2019). Improvement of efficiency of dye sensitized solar cells by optimizing the combination ratio of natural red and yellow dyes. Optik, 179, 252-258. https://doi.org/10.1016/j.ijleo.2018.10.171
Li, S., Wu, Z., and Zhou, Y. (2023). Carbon quantum dots for energy applications: A comprehensive review of synthesis strategies and electrochemical performance. Journal of Energy Chemistry, 77, 121–138. https://doi.org/10.1016/j.jechem.2022.10.008.
Jeevanandam, J., Barhoum, A., Chan, Y. S., Dufresne, A., & Danquah, M. K. (2018). Review on nanoparticles and nanostructured materials: history, sources, toxicity and regulations. Beilstein Journal of Nanotechnology, 9, 1050-1074.
Kumar, B., Smita, K., Cumbal, L., & Debut, A. (2021). Green synthesis of silver nanoparticles using Andean blackberry fruit extract. Saudi Journal of Biological Sciences, 24(1), 45-50.
Lee, K. X., Shameli, K., Yew, Y. P., Teow, S. Y., Jahangirian, H., Rafiee-Moghaddam, R., & Webster, T. J. (2020). Recent developments in the facile bio-synthesis of gold nanoparticles (AuNPs) and their biomedical applications. International Journal of Nanomedicine, 15, 275-300.
Mohan, S., Kumar, R., & Singh, M. (2019). Enhanced electrochemical properties of biosynthesized copper oxide nanoparticles for energy storage applications. Materials Chemistry and Physics, 224, 13–20. https://doi.org/10.1016/j.matchemphys.2018.12.042.
Nasrollahzadeh, M., Sajadi, S. M., Rostami-Vartouni, A., Bagherzadeh, M., & Safari, R. (2015). Immobilization of copper nanoparticles on perlite: green synthesis, characterization and catalytic activity on aqueous reduction of 4-nitrophenol. Journal of Molecular Catalysis A: Chemical, 400, 22-30.
Ogwuche, C. E., Elemike, E. E., Oju, D., Onwudiwe, D. C., Singh, M., & Akpeji, B. H. (2023). Synthesis, characterization, anticancer and antimicrobial potentials of Chrysothemis pulchella leaf extract mediated gold nanoparticles. Journal of Inorganic and Organometallic Polymers and Materials. https://doi.org/10.1007/s10904-023-02817-3
Okewale, A. O., & Akpeji, B. H. (2022). Green synthesis of zinc oxide nanoparticles (ZnONPs) from Manihot esculenta (cassava leaf) and its application as a corrosion inhibitor for mild steel in 1 M hydrochloric acid. APWEN Journal of Engineering Science and Technology (AJEST), 6(1), 1–12. https://doi.org/10.15406/mseij.2021.05.00155
Okewale, A. O., Adesina, O. A., & Akpeji, B. H. (2019). Effect of Terminalia catappa leaves extract on corrosion of mild steel using response surface methodology. Nigerian Journal of Basic and Applied Science, 27(2), 47–56. https://doi.org/10.4314/njbas.v27i2.7
Okhuarobo L O and Ugbune U (2023) Process formulation and usage of castor seed oil and polyvinyl acetate admixture in the manufacturing of emulsion paint. FUDMA Journal of sciences. https://doi.org/10.33003/fjs-2023-0706-2126
Ossai, A. N., Ezike, S. C., Timtere, P. and Ahmed, A. D. (2021). Enhanced Photovoltaic Performance of Dye-Sensitized Solar Cells-Based Carica Papaya Leaf and Black Cherry Fruit Co-Sensitizers. Chemical Physics Impact. https://doi.org/10.1016/j.chphi.2021. 100024
Pathak, C., Surana, K., Shukla, V. K. and Singh, P. K. (2019). Fabrication and characterization of dye sensitized solar cell using natural dyes. Materials Today: Proceedings, 12: 665- 670.
Patil, A. R., Pawar, S. A., & Lokhande, C. D. (2022). Recent advances in nitrogen-doped metal oxide nanostructures for supercapacitor applications. Journal of Alloys and Compounds, 906, 164316. https://doi.org/10.1016/j.jallcom.2022.164316
Ramesh, P., Rajendran, S., & Narayanan, V. (2022). Synthesis of CuO nanostructures using plant extracts for energy storage applications: A review. Journal of Materials Science: Materials in Electronics, 33(9), 6590–6604. https://doi.org/10.1007/s10854-022-08257-2
Rauwel, P., Küünal, S., Ferdov, S., & Rauwel, E. (2015). A review on the green synthesis of silver nanoparticles and their morphologies studied via TEM. Advances in Materials Science and Engineering, 2015, 682749.
Roy, P., Mondal, K., & Mukherjee, A. (2021). Phytochemical-assisted green synthesis of metal oxide nanostructures and their energy storage applications. ACS Sustainable Chemistry & Engineering, 9(12), 4295–4310. https://doi.org/10.1021/acssuschemeng.0c08890
Sharma, P., Kumar, A., and Singh, B. (2022). Direct and soxhlet extraction of dyes from the peels of Allium cepa and its effective application in dye-sensitized solar
Singh R and Srivastava S (2017) Critical review on the extraction of natural dyes from leaves. International Journal of Home Science. No. 2, p. 100-103.
Singh, P., Kim, Y. J., Zhang, D., & Yang, D. C. (2018). Biological synthesis of nanoparticles from plants and microorganisms. Trends in Biotechnology, 34(7), 588-599.
Singh, A., Jain, D., & Meena, R. (2023). Green synthesis of metal nanoparticles using plant extracts: A review of current status and future prospects. Journal of Environmental Chemical Engineering, 11(1), 109189. https://doi.org/10.1016/j.jece.2022.109189
Tesi, G. O., Ukachuku, S., Kpomah, B., Overah, L. C., Akpeji, B. H., Dolor, A. O., Okpara, K. E., & El-Mansi, M. (2025). Synthesis and characterization of magnetite–Eichhornia crassipes nanocomposite by chemical co-precipitation method for various applications. Journal of the Chemical Society of Nigeria, 50(2), 352–362.
Zhao, Y., Zhang, J., & Li, H. (2021). Bioinspired synthesis of nanostructured electrode materials for supercapacitors. Journal of Materials Chemistry A, 9(12), 6872–6885. https://doi.org/10.1039/D0TA11543C
Zhang, J., Chen, X., & Xie, Y. (2021). Nanostructured copper oxides for high-performance energy storage devices. Chemical Engineering Journal, 405, 126934. https://doi.org/10.1016/j.cej.2020.126934.
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