Journal of Electrochemical Science and Technology

The Korean Electrochemical Society (한국전기화학회)
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Exploiting the Anticorrosion Effects of Vernonia Amygdalina Extract for Protection of Mild Steel in Acidic Environments

  • Adindu, Blessing (Department of Chemistry, Imo State University) ;
  • Ogukwe, Cynthia (Electrochemistry and Material Science Research Laboratory, Federal University of Technology) ;
  • Eze, Francis (Electrochemistry and Material Science Research Laboratory, Federal University of Technology) ;
  • Oguzie, Emeka (Electrochemistry and Material Science Research Laboratory, Federal University of Technology)
  • Received : 2016.07.27
  • Accepted : 2016.09.10
  • Published : 2016.12.31
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Abstract

The corrosion protection of mild steel in 1M HCl and 0.5M $H_2SO_4$ solutions by ethanol extract of Vernonia amygdalina (VA) was studied using a combination of experimental and computational methods. The obtained results revealed that VA reduced the corrosion of mild steel in both environments and inhibition efficiency increased with VA concentration but decreased with prolonged exposure. Electrochemical results showed that the extract functioned via mixed corrosion inhibiting mechanism by adsorption of some organic constituents of the extract on the metal/acid interface. Findings from infrared spectroscopy and electron microscopy all confirmed that VA retarded mild steel corrosion in both 1M HCl and 0.5M $H_2SO_4$ through an adsorption process. The adsorption behavior of selected constituents of the extract was modeled using density functional theory computations.

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References

  1. M. Kissi, M. Bouklah, B. Hammouti and M. Benkaddour, Appl. Surf. Sci., 2006, 252, 4190-4197. https://doi.org/10.1016/j.apsusc.2005.06.035
  2. E. E. Oguzie, G. N. Onuoha and A. I. Onuchukwu, Mater. Chem. Phys., 2005, 89, 305-311. https://doi.org/10.1016/j.matchemphys.2004.09.004
  3. E. E. Oguzie, Mater. Lett., 2005, 59, 1076-1079. https://doi.org/10.1016/j.matlet.2004.12.009
  4. L. Tang, X. Li, G. Mu, G. Liu, L. Li, H. Liu and Y. Si, J. Mater. Sci., 2006, 41, 3063-3069. https://doi.org/10.1007/s10853-006-6987-8
  5. E. E. Ebenso, Bull. Electrochem., 2003, 19, 209-216.
  6. E. E. Oguzie, Mater. Chem. Phys., 2006, 99, 441-446. https://doi.org/10.1016/j.matchemphys.2005.11.018
  7. A. K. Satapathy, G. Gunasekaran, S. C. Sahoo, K. Amit and P. V. Rodrgues, Corros. Sci., 2009, 51, 2848-2856. https://doi.org/10.1016/j.corsci.2009.08.016
  8. F. S. De Souza and A. Spinelli, Corros. Sci., 2009, 52, 1845-1489.
  9. J. C. da Rocha, J. A. da Gomes and E. D'Elia, Corros Sci., 2010, 52, 2341-2348. https://doi.org/10.1016/j.corsci.2010.03.033
  10. H. Ashassi-Sorkhabi, D. Seifzadeh and H. Hosseini, Corros. Sci., 2008, 50, 3363-3370. https://doi.org/10.1016/j.corsci.2008.09.022
  11. P. C. Okafor and Z. Yugui, Corros. Sci., 2008, 51, 761.
  12. A. M. Abdel-Gaber, B. A. Abd-El-Nabey, I. M. Sidahmed, A. M. El-Zayaday and M. Saadawy, Corros. Sci., 2006, 48, 2765-2779. https://doi.org/10.1016/j.corsci.2005.09.017
  13. E. E. Ebenso, N. O. Eddy and A. O. Odiongenyi, Afr. J. Pure Appl. Chem., 2008, 11, 107-115.
  14. P. C. Okafor, E. E. Ebenso and U. J. Ekpe, Int. J. Electrochem. Sci., 2010, 5, 978-993.
  15. P. B. Raja and M. G. Sethuraman, Mater. Lett., 2008, 62, 2977-2979. https://doi.org/10.1016/j.matlet.2008.01.087
  16. C. Akalezi, C. Enenebaku, B. Okolue, E. Oguzie, Der Pharma Chemica., 2012, 4, 1145.
  17. C. E. Ogukwe, C. O. Akalezi, M. A. Chidiebere, K. L. Oguzie, Z. O. Iheabunike, E. E. Oguzie, Portugaliae ElectrochimicaActa., 2012, 30, 189-202. https://doi.org/10.4152/pea.201203189
  18. S. A. Umoren, U. M. Eduok, E. E. Oguzie, Portugaliae ElectrochimicaActa., 2008, 26, 533.
  19. A. C. Adindu, E. E. Oguzie and M. A. Chidiebere, International Letters of Chemistry, Physics and Astronomy, 2016, 66, 119-132. https://doi.org/10.18052/www.scipress.com/ILCPA.66.119
  20. M. A. Chidiebere, E. E. Oguzie, L. Liu, Y. Li and F. Wang, Ind. Eng. Chem. Res., 2014, 53, 7670-7679. https://doi.org/10.1021/ie404382v
  21. C. O. Akalezi, C. K. Enenebaku and E. E. Oguzie, J. Mater. Environ. Sci., 2013, 4, 217-226.
  22. L. N. Ukaiwe, E. E. Oguzie and C. Ajaero, The Afr. J. Plant Sci. and Biotechnol., 2008, 2, 109-111.
  23. E. E. Oguzie, Corros. Sci., 2008, 50, 2993-2998. https://doi.org/10.1016/j.corsci.2008.08.004
  24. M. Jisaka, H. Ohigashi, T. Takagaki, H. Nozaki, T. Tada, M. Hirota and M. Kaji, Tetrahedron, 1992, 48, 625-632. https://doi.org/10.1016/S0040-4020(01)88123-0
  25. C. A. Loto, Corrosion Prev. & Control, 2003, 50, 43-49.
  26. M. E. Pascual, K. Slowing, E. Carretero, D. Sánchez Mata and A. Villar, J. Ethnopharmacol., 2001, 76, 201-214. https://doi.org/10.1016/S0378-8741(01)00234-3
  27. C. A. Loto, O. O. Joseph, R. T. Loto and A. P. I. Popoola, Int. J. Electrochem. Sci., 2013, 8, 11087.
  28. A. O. Odiongenyi, S. A. Odoemelam, N. O. Eddy, PortugaliaeElectrochimicaActa, 2009, 27(1), 33-45.
  29. K. T Dauda, V. N. Atasie, A. A. Adetimilehin, Chemistry Journal, 2013, 3(3), 86-89.
  30. C. H. Achebe, A. B. Ilogebe, J. L. Chukwuneke, O. A.Azaka, D. C. Ugwuegbu, Int. J. Eng. Sci., 2015, 4, 1-9.
  31. E. E. Oguzie, C. E. Ogukwe, J. N. Ogbulie, F. C. Nwanebu, C. B. Adindu, I. O. Udeze, K. L Oguzie and F. C. Eze, J. Mater. Sci., 2012, 47, 3592-3601. https://doi.org/10.1007/s10853-011-6205-1
  32. C. O. Akalezi, C. K. Enenebaku and E. E. Oguzie, International Journal of Industrial Chemistry, 2012, 3, 1-12. https://doi.org/10.1186/2228-5547-3-1
  33. D. I. Njoku, M. A. Chidiebere, K. L. Oguzie, C. E. Ogukwe, E. E. Oguzie, Advances in material and corrosion, 2013, 1, 54-60.
  34. E. E. Oguzie, D. I. Njoku, M. A. Chidebere, C. E. Ogukwe and G. N. Onuoha, Ind. Eng. Chem. Res., 2004, 53, 5886-5894.
  35. E. E. Oguzie, C. Unaegbu, C. N. Ogukwe, B. N. Okolue and A. I. Onuchukwu, Mater. Chem. Phys., 2004, 84, 363-368. https://doi.org/10.1016/j.matchemphys.2003.11.027
  36. E. A. Noor, A. H. Al-Moubaraki, Int. J. Electrochem. Sci., 2008, 3, 806-818.
  37. M. A. Chidiebere, C. E. Ogukwe, K. L. Oguzie, C. N. Eneh and E. E. Oguzie, Ind. Eng. Chem. Res., 2012, 51, 668-677. https://doi.org/10.1021/ie201941f
  38. E. E. Oguzie, Z. O. Iheabunike, K. L. Oguzie, C. E. Ogukwe, M. A. Chidiebere, C. K. Enenebeaku and C. O. Akalezi, J. Dispersion Sci. Technol., 2013, 34, 516-527. https://doi.org/10.1080/01932691.2012.682008
  39. E. E. Oguzie, K. L. Oguzie, C. O. Akalezi, I. O. Udeze, J. N. Ogbulie and V. O. Njoku, ACS Sustainable Chem. Eng., 2013, 1, 214-225. https://doi.org/10.1021/sc300145k
  40. A. Popova, E. Sokolova, S. Raicheva and M. Christov, Corros Sci., 2003, 45, 33-58. https://doi.org/10.1016/S0010-938X(02)00072-0
  41. E. E. Oguzie, S. G. Wang, Y. Li and F. H. Wang, J. Phys. Chem. C, 2009, 113, 8420-8429. https://doi.org/10.1021/jp9015257
  42. R. A. Prabhu, T. V. Venkatesha, A. V. Shanbhag, B. M. Praveen and G. M. Kulkarni, Mater. Chem. Phys., 2008, 108, 283-289. https://doi.org/10.1016/j.matchemphys.2007.09.038
  43. E. E. Oguzie, C. K. Enenebeaku, C. O. Akalezi, S. C. Okoro, A. A. Ayuk and E. N. Ejike, J. Colloid Interface Sci., 2010, 349, 283-292. https://doi.org/10.1016/j.jcis.2010.05.027
  44. A. Y. El-Etre, J. Colloid Interface Sci., 2007, 314, 578-583. https://doi.org/10.1016/j.jcis.2007.05.077
  45. S. A. Umoren, I. B. Obot, E. E. Ebenso and N. O. Obi-Egbedi, Desalination, 2009, 247, 561-572. https://doi.org/10.1016/j.desal.2008.09.005
  46. A. R. Begum and M. Poonkothai, International Journal of Pharmacy and Pharmaceutical Sciences, 2013, 5, 404-408.
  47. J. O'M. Bockris and D. A. J. Swinkels, J. Electrochem. Soc., 1964, 111, 736-743. https://doi.org/10.1149/1.2426222
  48. B. Delley, J. Chem. Phys., 1990, 92, 508. https://doi.org/10.1063/1.458452
  49. B. Delley, J. Chem. Phys., 2000, 113, 7756. https://doi.org/10.1063/1.1316015
  50. S. Kr. Saha, A. Hens, A. RoyChowdhury, A. Kr. Lohar, N. C. Murmu1 and P. Banerjee, Canadian Chemical Transaction, 2014, 2, 489-503.
  51. I. M. Mejeha, M. C. Nwandu, K. B. Okeoma, L. A. Nnanna, M. A. Chidiebere, F. C. Eze and E. E. Oguzie, J. Mater Sci., 2012, 47, 2559-2573. https://doi.org/10.1007/s10853-011-6079-2
  52. V. S. Sastri and J. R. Perumareddi, Corros. Sci., 1997, 53, 617-622. https://doi.org/10.5006/1.3290294
  53. Z. Zhou and R. G. Parr, J. Am. Chem. Soc., 1990, 112, 5720-5724. https://doi.org/10.1021/ja00171a007
  54. C. J. Casewit, K. S. Colwell and A. K. Rappe, J. Am. Chem. Soc., 1992, 114, 10035-10046. https://doi.org/10.1021/ja00051a041