ZnO-SiO₂ Nanocomposite: Synthesis, Characterization, and Application of Corrosion Inhibition
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Keywords:
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Nanocomposite, ZnO-SiO2 Nanocomposite, Corrosion Inhibition, Mild Steel
Abstract
Herein, we are reporting the synthesis of zinc oxide (ZnO), silicon dioxide (SiO2), and a binary nanocomposite ZnO-SiO2 by the co-precipitation method. The materials were comprehensively characterized, such as via Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), powder X-ray diffraction (XRD), UV–Vis spectroscopy, and nitrogen adsorption–desorption (BET) measurements before their application. The presence of typical Zn-O and Si-O vibrations characteristic of ZnO was confirmed by FTIR spectra, whereas the hexagonal morphology of ZnO crystals, spherical SiO2, and agglomerated ZnO-SiO2 nanostructures were confirmed by SEM images. XRD measurements showed the crystallinity of the as-obtained nanostructures and the average crystallite sizes of 37.78 nm for ZnO, 48.01 nm for SiO2, and 34.09 nm for composite ZnO-SiO2 as determined by the Scherrer equation. The synthesized ZnO, SiO2, and ZnO-SiO2 nanoparticles were then evaluated on the basis of their inhibitive abilities toward corrosion processes in mild steel coupons exposed to 1M HCl estimated by potentiodynamic polarization. All the studied binary composites emerged as having the strongest inhibitory potential, with the ZnO-SiO2 nanocomposite root system experience showing the most powerful inhibition potential, reducing the corrosion current density i-corr to 36.1 µA cm-2 and reaching 93% inhibition efficiency. These results demonstrate that the future of using co-precipitation-based synthesis lies in the ability to obtain tunable nanostructure composites with desirable physicochemical properties and efficient corrosion inhibition in acidic media
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Gupta, R., R. Verma, S. Kango, A. Constantin, P. Kharia, R. Saini, and P. Chamoli (2023b). A Critical Review on Recent Progress, Open Challenges, and Applications of Corrosion-Resistant Superhydrophobic Coating. Materials Today Communications, 34; 105201
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Huang, D., Y. Zhang, J. Zhang, H. Wang, M. Wang, C. Wu, and Z. Zhao (2019). The Synergetic Effect of a Structure Engineered Mesoporous SiO2 ZnO Composite for Doxycycline Adsorption. RSC Advances, 9(66); 38772–38782
Joni, I. M., Rukiah, and C. Panatarani (2020). Synthesis of Silica Particles by Precipitation Method of Sodium Silicate: Effect of Temperature, pH and Mixing Technique. AIP Conference Proceedings, 2219(1); 020043
Justine, M., H. Joy Prabu, I. Johnson, D. Magimai Antoni Raj, S. John Sundaram, and K. Kaviyarasu (2021). Synthesis and Characterization Studies of ZnO and ZnO SiO2 Nanocomposite for Biodiesel Applications. Materials Today: Proceedings, 36; 440–446
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Krishnakumar, B., A. Balakrishna, S. A. Nawabjan, V. Pandiyan, A. Aguiar, and A. J. F. N. Sobral (2017). Solar and Visible Active Amino Porphyrin/SiO2 ZnO for the Degradation of Naphthol Blue Black. Journal of Physics and Chemistry of Solids, 111; 364–371
Kumar Yadav, V. and M. H. Fulekar (2019). Green Synthesis and Characterization of Amorphous Silica Nanoparticles from Fly Ash. Materials Today: Proceedings, 18; 4351–4359
Li, J., Z. Liu, and Z. Wang (2023). Study of Nano-ZnO Improvement of the Mechanical Properties and Corrosion Resistance of Modified-SiO2/PTFE Superhydrophobic Nanocomposite Coatings by One-Step Spraying. New Journal of Chemistry, 47(13); 6246–6257
Liang, T., H. Yuan, C. Li, S. Dong, C. Zhang, G. Cao, and X. Cao (2021). Corrosion Inhibition Effect of Nano-SiO2 for Galvanized Steel Superhydrophobic Surface. Surface and Coatings Technology, 406; 126673
Liang, Y., J. Ouyang, H. Wang, W. Wang, P. Chui, and K. Sun (2012). Synthesis and Characterization of Core-Shell Structured SiO2@YVO4:Yb3+,Er3+ Microspheres. Applied Surface Science, 258(9); 3689–3694
Mishra, P. K., H. Mishra, A. Ekielski, S. Talegaonkar, and B. Vaidya (2017). ZnO Nanoparticles: A Promising Nanomaterial for Biomedical Applications. Drug Discovery Today, 22(12); 1825–1834
Nam, N. H. and N. H. Luong (2019). Nanoparticles: Synthesis and Applications. In V. Grumezescu and A. M. Grumezescu, editors, Materials for Biomedical Engineering. Elsevier, pages 211–240
Nguyen, T. H., T. C. Vu, T. P. Le, T. H. Nguyen, X. T. Do, and A. T. Vu (2024). Synthesis of Mesoporous ZnO·SiO2 Nanocomposite from Rice Husk for Enhanced Degradation of Organic Substances Including Janus Green B under Visible Light. Bulletin of Chemical Reaction Engineering & Catalysis, 19(1); 20175
Özgür, Ü., Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Doğan, V. Avrutin, S.-J. Cho, Morkoç, and H (2005). A comprehensive review of ZnO materials and devices. Journal of applied physics, 98(4)
Peng, Q. Q., M. Liu, Y. F. Huang, G. Z. Ma, W. L. Guo, H. D. Wang, and Z. G. Xing (2023). Preparation and Properties of Al2O3 PF Composite Functional Protective Coating on the Surface of Polymer Matrix Composites. Surface and Coatings Technology, 456; 129138
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Authors
Alam Q. AL-Hussin, Taleb Bader, A., & Al-Gubury, H. Y. . (2026). ZnO-SiO₂ Nanocomposite: Synthesis, Characterization, and Application of Corrosion Inhibition. Science and Technology Indonesia, 11(2), 538–550. https://doi.org/10.26554/sti.2026.11.2.538-550
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