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Experimental Study on Adsorption and Corrosion Inhibition Properties of Urena lobata Leaves Extract on Mild Steel in Acidic Medium

Received: 26 January 2024     Accepted: 19 February 2024     Published: 13 March 2024
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Abstract

The corrosion inhibitive effect of Urena lobata leaves extract on mild steel in 1M HCl solution was investigated via gravimetric, Electrochemical and Surface analyses. Adsorption isotherms were investigated using the Langmuir and Freundlich plots. Phytochemicals of the extract were investigated using Gas Chromatography-Mass Spectrometric (GC-MS) technique. The effect of the leaves extract through immersion time, temperature and concentration on the corrosion inhibition were obtained. The results obtained showed that the increase in extract’s concentration increased the inhibition efficiency and the protection was more on the surface of the metal at lower temperature. Maximum inhibition efficiency of 95.8% was obtained at 2.5g/L extract concentration. Corrosion rate of mild steel increased with temperature increase in the acidic solution. The adsorption process reduced as temperature increased thereby indicating physisorption. The Langmuir isotherms gave the best fit indicating chemisorption. Physical adsorption was confirmed for the leaves extract from observations of inhibition efficiency with temperature, activation energy and enthalpy of adsorption values. Hence indicating that the plant extract has mixed properties. The electrochemical results confirmed the inhibitory ability of the plant extract. The inhibition efficiencies (% IE) were attributed to the phytochemical components (alkaloids, saponins, flavonoids, tannins, cynagenic glycosides) present in the extract. The extracts of Urena lobata are effective corrosion inhibitors of mild steel.

Published in American Journal of Physical Chemistry (Volume 13, Issue 1)
DOI 10.11648/j.ajpc.20241301.13
Page(s) 17-27
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Urena Lobata, Inhibition Efficiency, Corrosion Inhibitors, Corrosion Rate, Mild Steel

References
[1] Aejitha, S., Kasthuri, P. K. and Jyothi, S. (2015). Corrosion inhibitory action of Commiphora caudata extract on the mild steel corrosion in 1 M H2SO4 acid medium. Journal of Adhesion Science and Technology, 30(7), 1-19.
[2] Ebenso, E. E., Arslan, T., KandemIrl, F., Love, I., Ogretir, C., Saracoglu, M. and Umoren, S. A. (2009). Theoretical Studies of Some Sulphonamides as Corrosion Inhibitors for Mild Steel in Acidic Medium. International Journal of Quantum Chemistry, 110, 2614–2636.
[3] Emembolu, L. N., Onukwuli, O. D. and Okafor, V. N. (2020). Characterization and optimization study of epiphyllum oxypetalum extract as corrosion inhibitor for mild steel in 3M H2SO4 solutions. Scientific World News, 145, 256-273.
[4] Enyinnaya, N. P., James, A. O. and Obi, C. (2021). Corrosion inhibition of Urena lobata leave extract on mild steel corrosion in H2SO4 acid. International Journal of Advances in Engineering and Management (IJAEM), 3(12), 1275-1286.
[5] Enyinnaya, N. P., James, A. O. and Obi, C. (2021). Inhibitive potential of benign Caesarweed leaves extract (CWLE) as corrosion inhibitor of aluminium in H2SO4 phase. Interdisciplinary Journal of Applied and Basic Subjects, 2(1), 1-13.
[6] Fouda, A. E., Mekkia, D. and Badr, A. H. (2013). Extract of Camillia sinensis as green inhibitor for the corrosion of mild steel in aqueous solution. Journal of Korean Chemical society, 57(2), 264-271.
[7] Lebrini, M., Robert, F. and Roos, C. (2010). Inhibition effect of Alkaloids extract from Amona squamosa plant on the corrosion of C38 steel in Nomal Hydrochloric acid medium. International Journal of Electrochemical Science, 5, 1698-1712.
[8] Li, D., Zhang, P., Guo, X., Zhao, X. and Xu, Y. (2019). The inhibition of mild steel corrosion in 0.5 M H2SO4 solution by radish leaf extract. Royal Society of Chemistry, 9, 40997- 41009.
[9] Loto, A. C., Loto, R. T. and Oshogbunu J. O. (2016). Corrosion Inhibition effect of Allium sativum extract on mild steel in HCl and H2SO4. Journal of Chemical and Pharmaceutical Research, 8(2), 216-230.
[10] Nzeneri, U. J. and Enyinnaya, N. P. (2022). Corrosion of aluminium in hydrochloric acid solution containing thiodiglycolic acid. Journal of Material and Environmental Science, 13(5), 553-563.
[11] Obi-Egbedi, N. O., Essien, K. E., Obot, I. B. and Ebenso, E. E. (2011). 1,2-Diaminoanthraquinone as corrosion inhibitor for mild steel in hydrochloric acid; weight loss and quantum chemical study. International Journal of Electrochemical Science, 6, 913-930.
[12] Odidika, C. C., Ajiwe, V. I. E., Eboagu, N. C. and Awuzie, C. I. (2020). Corrosion Inhibitive Action of Euphorbia heterophylla Leaves Extract on Mild Steel in 1M H2SO4 Solution. Open Science Journal of Analytical Chemistry, l, 5(1), 1-8.
[13] Odusote, J. K., and Ajayi, O. M. (2013). Corrosion Inhibition of Mild Steel in Acidic Medium by Jathropha Curcas Leaves Extract. Journal of Electrochemical Science and Technology, 4(2), 81-87.
[14] Satapathy, A. K., Gunasekaram, G., Sahoo, S. C., Amit, K. and Rodrigues, P. V. (2009). Corrosion inhibition by Justicia gendarussa plant extract in hydrochloric acid solution. Corrosion Science, 51, 2848 – 2856.
[15] Saxena, A., Prasad, D. and Haldhar, R. (2017). Use of Butea monosperma extract as green corrosion inhibitor for mild steel in 0.5M H2SO4. International Journal of Electrochemical Science, 12, 8793-8805.
[16] Shukla, S. K. and Ebenso, E. E. (2011). Corrosion Inhibition adsorption behavior and thermodynamic properties of streptomycin on mild steel in hydrochloric acid medium. International Journal of Electrochemical Science, 6, 3277-3291.
[17] Weeds of Australia. (2022). Urena lobata. https://keyserver.lucidcentral.org/weeds/data/media/Html/urena_lobata.htm Retrieved on the 14th of June 2022.
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  • APA Style

    Barineka, Z. K., Maduelosi, N. J., Umoh, E. T. (2024). Experimental Study on Adsorption and Corrosion Inhibition Properties of Urena lobata Leaves Extract on Mild Steel in Acidic Medium. American Journal of Physical Chemistry, 13(1), 17-27. https://doi.org/10.11648/j.ajpc.20241301.13

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    ACS Style

    Barineka, Z. K.; Maduelosi, N. J.; Umoh, E. T. Experimental Study on Adsorption and Corrosion Inhibition Properties of Urena lobata Leaves Extract on Mild Steel in Acidic Medium. Am. J. Phys. Chem. 2024, 13(1), 17-27. doi: 10.11648/j.ajpc.20241301.13

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    AMA Style

    Barineka ZK, Maduelosi NJ, Umoh ET. Experimental Study on Adsorption and Corrosion Inhibition Properties of Urena lobata Leaves Extract on Mild Steel in Acidic Medium. Am J Phys Chem. 2024;13(1):17-27. doi: 10.11648/j.ajpc.20241301.13

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  • @article{10.11648/j.ajpc.20241301.13,
      author = {Zorbari Kelvin Barineka and Ngozi Jane Maduelosi and Enobong Thompson Umoh},
      title = {Experimental Study on Adsorption and Corrosion Inhibition Properties of Urena lobata Leaves Extract on Mild Steel in Acidic Medium},
      journal = {American Journal of Physical Chemistry},
      volume = {13},
      number = {1},
      pages = {17-27},
      doi = {10.11648/j.ajpc.20241301.13},
      url = {https://doi.org/10.11648/j.ajpc.20241301.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20241301.13},
      abstract = {The corrosion inhibitive effect of Urena lobata leaves extract on mild steel in 1M HCl solution was investigated via gravimetric, Electrochemical and Surface analyses. Adsorption isotherms were investigated using the Langmuir and Freundlich plots. Phytochemicals of the extract were investigated using Gas Chromatography-Mass Spectrometric (GC-MS) technique. The effect of the leaves extract through immersion time, temperature and concentration on the corrosion inhibition were obtained. The results obtained showed that the increase in extract’s concentration increased the inhibition efficiency and the protection was more on the surface of the metal at lower temperature. Maximum inhibition efficiency of 95.8% was obtained at 2.5g/L extract concentration. Corrosion rate of mild steel increased with temperature increase in the acidic solution. The adsorption process reduced as temperature increased thereby indicating physisorption. The Langmuir isotherms gave the best fit indicating chemisorption. Physical adsorption was confirmed for the leaves extract from observations of inhibition efficiency with temperature, activation energy and enthalpy of adsorption values. Hence indicating that the plant extract has mixed properties. The electrochemical results confirmed the inhibitory ability of the plant extract. The inhibition efficiencies (% IE) were attributed to the phytochemical components (alkaloids, saponins, flavonoids, tannins, cynagenic glycosides) present in the extract. The extracts of Urena lobata are effective corrosion inhibitors of mild steel.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Experimental Study on Adsorption and Corrosion Inhibition Properties of Urena lobata Leaves Extract on Mild Steel in Acidic Medium
    AU  - Zorbari Kelvin Barineka
    AU  - Ngozi Jane Maduelosi
    AU  - Enobong Thompson Umoh
    Y1  - 2024/03/13
    PY  - 2024
    N1  - https://doi.org/10.11648/j.ajpc.20241301.13
    DO  - 10.11648/j.ajpc.20241301.13
    T2  - American Journal of Physical Chemistry
    JF  - American Journal of Physical Chemistry
    JO  - American Journal of Physical Chemistry
    SP  - 17
    EP  - 27
    PB  - Science Publishing Group
    SN  - 2327-2449
    UR  - https://doi.org/10.11648/j.ajpc.20241301.13
    AB  - The corrosion inhibitive effect of Urena lobata leaves extract on mild steel in 1M HCl solution was investigated via gravimetric, Electrochemical and Surface analyses. Adsorption isotherms were investigated using the Langmuir and Freundlich plots. Phytochemicals of the extract were investigated using Gas Chromatography-Mass Spectrometric (GC-MS) technique. The effect of the leaves extract through immersion time, temperature and concentration on the corrosion inhibition were obtained. The results obtained showed that the increase in extract’s concentration increased the inhibition efficiency and the protection was more on the surface of the metal at lower temperature. Maximum inhibition efficiency of 95.8% was obtained at 2.5g/L extract concentration. Corrosion rate of mild steel increased with temperature increase in the acidic solution. The adsorption process reduced as temperature increased thereby indicating physisorption. The Langmuir isotherms gave the best fit indicating chemisorption. Physical adsorption was confirmed for the leaves extract from observations of inhibition efficiency with temperature, activation energy and enthalpy of adsorption values. Hence indicating that the plant extract has mixed properties. The electrochemical results confirmed the inhibitory ability of the plant extract. The inhibition efficiencies (% IE) were attributed to the phytochemical components (alkaloids, saponins, flavonoids, tannins, cynagenic glycosides) present in the extract. The extracts of Urena lobata are effective corrosion inhibitors of mild steel.
    
    VL  - 13
    IS  - 1
    ER  - 

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Author Information
  • Department of Chemistry, Rivers State University, Port Harcourt, Nigeria

  • Department of Chemistry, Rivers State University, Port Harcourt, Nigeria

  • Department of Chemistry, Rivers State University, Port Harcourt, Nigeria

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