Inhibitory action of Vernonia amygdalina extract (VAE) on the corrosion of carbon steel in acidic medium

Authors

  • Olamide Olawale Department of Chemical Engineering, College of Science and Engineering, Landmark University, Omu-Aran, Kwara State
  • Adesoji Adeolu Adediran 2Department of Mechanical Engineering, College of Science and Engineering, Landmark University, Omu-Aran, Kwara State
  • Segun Isaac Talabi Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin
  • Geraldine Chika Nwokocha Department of Chemical Engineering, College of Science and Engineering, Landmark University, Omu-Aran, Kwara State
  • Alewo Opuada Ameh Chemical Engineering Department, Ahmadu Bello University, Zaria

DOI:

https://doi.org/10.5599/jese.353

Keywords:

Phytochemical, Vernonia amygdalina stem extract, Mild steel degradation, Inhibition efficiency, hydrochloric acid
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Abstract

This study investigates the inhibition potential of Vernonia amygdalina stem extract (VAE) on the corrosion of mild carbon steel immersed in 1 M HCl solution containing various concentrations of the inhibitor. The corrosion rate and inhibition efficiency were evaluated using mass loss and adsorption techniques. The results revealed that VAE efficiently inhibits the corrosion rate of mild carbon steel immersed in the acidic medium. The concentration of 0.6 g/L provides the highest inhibition efficiency of 78.1 %. The adsorption process was consistent with the physisorption mechanism and obeyed the Langmuir isotherm. The functional groups responsible for inhibition were identified using Fourier Transform Infrared (FTIR) spectra. The surface morphology of the corroded samples examined with Scanning Electron Microscope (SEM) revealed the presence of protective oxide layer. Inhibition efficiency was found depended on the presence of oxalate, phytate, tannins, saponins and flavonoids in the VAE. It has been concluded that VAE is safe, cheap and efficient corrosion inhibitor for mild carbon steel.

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References

P. Neha, A. Shruti, S. Pallav, Chinese Journal of Engineering. doi.org/10.1155/2013/748186

S. Bhat, V.K. Sharma, S. Thomas, P.F. Anto, S.K. Singh, Material performance 50 (2011) 50-53.

O. O, Ajayi, O. A. Omotosho, O. Vincent, V. O. Ifepe, Journal of Materials and Environmental Science 2 (2011) 186-195.

J. K. Odusote, O. M. Ajayi, Journal of Electrochemical Science and Technology 4 (2013) 81-87.

O. Olawale, F. A. Oyawale, A. A. Adediran, A. S. Obafemi, Fascicula de Inginerie 23 (2016) 228-238.

K .K. Alaneme, S. J. Olusegun, Leonardo Journal of Sciences 20 (2012) 59-70.

E. E. Ebenso, U. J. Ekpe. West African Journal of Biological and Applied Chemistry 41 (1996) 21-27.

M. Lebrini, F. Robert, P.A. Blandinières, C. Roos. International Journal of Electrochemical. Science 6 (2011) 2443- 2460.

E. E. Oguzie. Pigment and Resin Technology 34 (2005) 321-326.

K. K. Alaneme, Y. S. Daramola, S. J. Olusegun, A. S. Afolabi, International Journal of Electrochemical Science 10 (2015) 3553- 3567.

E. F. Olasehinde, S. J. Olusegun, A. S. Adesina, S. A. Omogbehin, H. Momoh-Yahayah, Natural Sciences 11 (2013) 83-90.

D .T . Oloruntoba, J. A. Abbas, S. J. Olusegun, Proceedings of 4th West Africa Built Environment Research (WABER), Abuja, Nigeria, 24-26 July (2012) 1131-1140.

A. Singh, I. Ahamad, D. K. Yadav, V. K. Singh, M. A. Quraishi, Chemical Engineering Communications 199 (2011) 63-77.

N. I. Kairi, J. Kassim, International Journal of Electrochemical Science 8 (2013) 7138-7155.

U. J. Ekpe, E. E. Ebenso, U. J. Ibok, Journal of the West African Science Association 37 (1994) 13-30.

P. C. Okafor, M. E. Ikpi, I. E. Uwah, E. E. Ebenso, U. J. Ekpe, S. A. Umoren, Corrosion Science 50 (2008) 2310-2317.

C. A. Loto, Corrosion Prevention and Control 50 (2003) 43-49.

A. Y. EL-Etre, Applied Surface Science 252 (2006) 8521-8525.

I. C. Awe, A. S. Abdulrahaman, H. K. Ibrahim, A. G. Karrem, S. M. Adams. American Journal of Materials Engineering and Technology 3 (2015) 1-45.

K. Kumar, M. Pillai, G. Thusnavia, Journal of Materials, Science and Technology 27 (2011) 1143-2011.

U. Udochukwu, F. I. Omeje, I. S. Uloma, F. D. Oseiwe, American Journal of Research Communication 3 (2015) 225-235.

N. O. A. Imaga, D. O. Bamigbetan, International Journal of Nutrition and Metabolism 5 (2013) 22-27.

H. Gerengi, H. I. Sahin, Industrial and Engineering Chemistry Research 51 (2012) 780-788.

F. A. Ayeni, I. A. Madugu, P. Sukup, A. P. Ihom, O. O. Alabi, R. Okara, M. Abdulwahab, Journal of Minerals & Materials Characterization and Engineering 1 (2012) 667-670.

O. A. Omotosho, O. O. Ajayi, TBJ. Eng. Sci, 44 (2012) 77-92.

E. E. Oguzie, Materials, Chemistry and Physics 87 (2004) 12-17.

S. J. Olusegun, B. A. Adeiza, K. I. Ikeke, M. O. Bodunrin, Journal of Emerging Trends in Engineering and Applied Sciences 4 (2013) 138-143.

G. E. Debi, H. Esah, I. Mohammed, A. S. Abdulraham, M. Aminu, Australian Journal of Basic and Applied Sciences 7 (2013) 257-263.

A. N. Lebe, I. O. Owate, E. E. Oguzie, International Journal of Materials Engineering 4 (2014) 171-179.

E. E. Oguzie, Corrosion Science 49 (2007) 1527-1539.

O. O. Obiukwu, I. O. Opara, B. C. Oyinna, The Pacific Journal of Science and Technology 14 (2013) 31-35.

A. Rani, B. B. J. Basu, International Journal of Corrosion (2012) doi:10.1155/2012/380217

F. S. De Souza, A. Spinelli, Corrosion Science 51 (2009) 642-649.

M. A. Ameer, A. M. Fekry, Progress in Organic Coatings 71 (2011) 343-349.

A. Singh, S. Eno, E. E. Ebenso, M. A. Quraishi, International Journal of Corrosion (2012) 1-20, doi:10.1155/2012/897430

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Published

15-08-2017

How to Cite

Olawale, O., Adediran, A. A., Talabi, S. I., Nwokocha, G. C., & Ameh, A. O. (2017). Inhibitory action of Vernonia amygdalina extract (VAE) on the corrosion of carbon steel in acidic medium. Journal of Electrochemical Science and Engineering, 7(3), 145–152. https://doi.org/10.5599/jese.353

Issue

Vol. 7 No. 3 (2017)

Section

Electrochemical Engineering

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