Utilization of watermelon rind extract as a green corrosion inhibitor for mild steel in acidic media

N.A. Odewunmi; S.A. Umoren; Z.M. Gasem

Journal of Industrial and Engineering Chemistry, Vol.21, 239-247, January, 2015

DOI10.1016/j.jiec.2014.02.030 Export Citation

Utilization of watermelon rind extract as a green corrosion inhibitor for mild steel in acidic media

N.A. Odewunmi^†, S.A. Umoren, and Z.M. Gasem

Center of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, 31261, Saudi Arabia

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Electrochemical techniques were used to investigate the efficacy of watermelon rind extract (WMRE) as corrosion inhibitor for mild steel in HCl and H2SO4 solutions. The inhibition efficiency increased as the concentration of the extract increases. Potentiodynamic polarization results indicate that WMRE act as a mixed-type inhibitor. The values of effective capacitance obtained by utilizing the impedance parameters in both acidic media are in the range of double layer capacitance. Corrosion inhibition effect of WMRE can be attributed to the adsorption of constituents of WMRE onto the mild steel surface which can be approximated by Temkin adsorption isotherm model.

Keywords:Watermelon;Acid corrosion;Corrosion inhibition;Mild steel;Biomaterials

[References]

Guo W, Chen S, Feng Y, Yang C, J. Phys. Chem. C, 111, 3109 (2007)
Amin MA, Ibrahim MM, Corrosion Sci., 53, 873 (2011)
Banerjee S, Srivastava V, Singh MM, Corrosion Sci., 59, 35 (2012)
Cao PG, Yao JL, Zheng JW, Gu RA, Tian ZQ, Langmuir, 18(1), 100 (2002)
Hackerman N, Langmuir, 3, 922 (1987)
Radojcic I, Berkovic K, Kovac S, Vorkapic-Furac J, Corrosion Sci., 50, 1498 (2008)
El-Etre AY, Corrosion Sci., 40, 1845 (1998)
Oguzie EE, Corrosion Sci., 50, 2993 (2008)
Abiola OK, Otaigbe JOE, Kio OJ, Corrosion Sci., 51, 1879 (2009)
Leelavathi S, Rajalakshmi R, J. Mater. Environ. Sci., 4, 625 (2013)
Raja PB, Fadaeinasab M, Qureshi AK, Rahim AA, Osman H, Litaudon M, Awang K, Ind. Eng. Chem. Res., 52(31), 10582 (2013)
Vijayalakshmi PR, Rajalakshmi R, Inhibition of mild steel corrosion using aqueous extract of Cocos nucifera L. Peduncle in acidic solutions and their adsorption characteristics, 2013.
Singh RM, J. Mater. Environ. Sci., 4, 117 (2013)
Singh A, Kumar A, Pramanik T, Oriental J. Chem., 29, 277 (2013)
Ikeuba AI, Okafor PC, Ekpe UJ, Ebenso EE, Int. J. Electrochm. Sci., 8, 7455 (2013)
Benali O, Benmehdi H, Hasnaoui O, Selles C, Salghi R, J. Mater. Environ. Sci., 4, 127 (2013)
Yaro AS, Khadom AA, Wael RK, Alexandria Eng. J., 52, 129 (2013)
Afia L, Salghi R, Zarrouk A, Zarrok H, Bazzi EH, Hammouti B, Zougagh M, Trans. Ind. Inst. Metals, 66, 43 (2013)
Beenakumari KS, J. Ind. Pollut. Control, 29, 213 (2013)

[Referenced By]

[1] Guo W, Chen S, Feng Y, Yang C, J. Phys. Chem. C, 111, 3109 (2007)

[2] Amin MA, Ibrahim MM, Corrosion Sci., 53, 873 (2011)

[3] Banerjee S, Srivastava V, Singh MM, Corrosion Sci., 59, 35 (2012)

[4] Cao PG, Yao JL, Zheng JW, Gu RA, Tian ZQ, Langmuir, 18(1), 100 (2002)

[5] Hackerman N, Langmuir, 3, 922 (1987)

[6] Radojcic I, Berkovic K, Kovac S, Vorkapic-Furac J, Corrosion Sci., 50, 1498 (2008)

[7] El-Etre AY, Corrosion Sci., 40, 1845 (1998)

[8] Oguzie EE, Corrosion Sci., 50, 2993 (2008)

[9] Abiola OK, Otaigbe JOE, Kio OJ, Corrosion Sci., 51, 1879 (2009)

[10] Leelavathi S, Rajalakshmi R, J. Mater. Environ. Sci., 4, 625 (2013)

[11] Raja PB, Fadaeinasab M, Qureshi AK, Rahim AA, Osman H, Litaudon M, Awang K, Ind. Eng. Chem. Res., 52(31), 10582 (2013)

[12] Vijayalakshmi PR, Rajalakshmi R, Inhibition of mild steel corrosion using aqueous extract of Cocos nucifera L. Peduncle in acidic solutions and their adsorption characteristics, 2013.

[13] Singh RM, J. Mater. Environ. Sci., 4, 117 (2013)

[14] Singh A, Kumar A, Pramanik T, Oriental J. Chem., 29, 277 (2013)

[15] Ikeuba AI, Okafor PC, Ekpe UJ, Ebenso EE, Int. J. Electrochm. Sci., 8, 7455 (2013)

[16] Benali O, Benmehdi H, Hasnaoui O, Selles C, Salghi R, J. Mater. Environ. Sci., 4, 127 (2013)

[17] Yaro AS, Khadom AA, Wael RK, Alexandria Eng. J., 52, 129 (2013)

[18] Afia L, Salghi R, Zarrouk A, Zarrok H, Bazzi EH, Hammouti B, Zougagh M, Trans. Ind. Inst. Metals, 66, 43 (2013)

[19] Beenakumari KS, J. Ind. Pollut. Control, 29, 213 (2013)