Salami et al
Greener Journal of Physical Sciences Vol. 5 (1), pp. 001-010, January 2015.
ISSN: 2276-7851 © 2015 Greener Journals
Manuscript Number: 012513410
Comparative Adsorption Mechanism of Musa Sapientum Peels Extracts for Green Corrosion Inhibition of Mild Steel in Sulphuric Acid
1*Salami L., 2Fadayini O.M. and 3Olafadehan O.A.
1Department of Chemical and Polymer Engineering, Lagos State University, Epe, Lagos, Nigeria.
2Department of Chemical Engineering, Lagos state Polytechnic, Ikorodu, Lagos, Nigeria.
3Department of Chemical Engineering, University of Lagos, Akoka, Yaba, Lagos, Nigeria.
The production of green corrosion inhibitors from locally sourced organic wastes makes environmental friendly corrosion inhibitor available. The aim and objective of this is to produce corrosion inhibitor from local Musa Sapientum Peels with a perspective of establishing the kinetics of the adsorption of Musa Sapientum Peels extract on mild steel bar in 2.0M sulphuric acid. Musa Sapientum Peels extract produced was used as a corrosion inhibitor on mild steel bar in concentrated sulphuric acid using weight loss method. The results showed that the concentration of corrosion inhibitor is directly proportional to inhibitor efficiency and surface coverage but inversely proportional to weight loss of mild steel bar. Langmuir Isotherm, Freundlich Isotherm and Kinetic – Thermodynamic model predicted the kinetics of the ethanol extract of Musa Sapientum peels used as a corrosion inhibitor of mild steel bar while Linear isotherm did not. Among the three isotherms that predicted the results, Freundlich has the best correlation than Langmuir and Kinetic – Thermodynamic model based on the value of the goodness fit.
Keywords: adsorption, corrosion inhibitor, musa sapientum, mild steel, sulphuric acid.
Sudhish K S, Ashish K S and Quraishi M A (2011). “Corrosion Inhibition and adsorption properties of N-Phenylhydrazine – 1, 2, - Dicarbothioamide on Mild Steel in hydrochloric acid”. International Journal of Electrochemical Science. Vol. 6: 5779 – 5791.
Obot I B, Obi-Egbedi N O and Umoren S A (2009). “Adsorption characteristics and corrosion inhibitive properties of clotrimazole for aluminium corrosive in hydrochloric acid.” International Journal of Electrochemical Science. Vol. 4: 863 – 877.
Rapp B (2006). “Materials Today”. 9(3):6.
Eddy N O and Ebenso E E (2008). “Adsorption and Inhibitive properties of ethanol extracts of Musa Sapientum peels as a green corrosive inhibitor for mild steel in sulphuric acid”. African Journal of Pure and Applied Chemistry. 2(6): 46 – 54.
Fekry A M and Ameer M A (2010). “Corrosion inhibition of mild steel in acidic media using newly synthesized heterocyclic organic molecules”. International Journal of Hydrogen Energy. 35: 7641.
Abboud, Y., Abourriche, A. Saffa, T., Berrade, M., Charrouf, M., Bennamera, A. and Hannache, H. (2009). “A novel azodye, 8 – quinolinol – 5 – azoantipyrine as corrosion inhibitor for mild steel in acidic media”. Desalination. 237: 175
Obot I B, Umoren S A and Obi-Egbedi N O (2011). “Corrosion inhibition and adsorption behaviour of aluminium by extract of Aningeria robusta in hydrochloric solution: Synergistic effect of iodide ions”. Journal of Material and Environment. 2(1): 60-71
Ebenso E E, Alemu H, Umoren S Aand Obot I B (2008). “Inhibition of mild steel corrosion in sulphuric acid using alizarin yellow GG dye and synergistic iodide additive”. International Journal of Electrochemical Science. 3: 1325.
Ebenson E E, Isabirye D A and Eddy N O (2010). “Adsorption and quantum chemical studies on the inhibition potentials of some thiosemicarbazides for the corrosion of mild steel in acidic medium”. International Journal of Molecular Science. 11(6): 2473-2498
Rozendeld I L (1981). “Corrosion Inhibitors”. McGraw-Hill, New York.
Trabanelli G (1987). “Corrosion mechanism” in : F. Mansfeld (Ed.). Mercel Dekker, New York.
Sastri S (2001). “Corrosion Inhibitors principles and applications”. John Wiley and Sons publisher. USA.
El-Egamy S (2008). “Corrosion Science”. 50: 928.
Unuabonah E, Olu-Owolabi B, Adebowale O and Ofomaja E (2007). “Colloids and Surfaces”. Physiochemical Engineering Aspects. 292: 202.
Redlich O and Peterson D L (1959). “A useful adsorption isotherm”. Journal of Physical Chemistry. 63: 1024.
Obot I O, Aluyor E O and Audu T O K (2011). “Adsorption isotherms for sorption of nickel (ii) ions onto agricultural waste materials”. Journal of the Nigerian Society of Chemical Engineers. 26(1): 115-122.
Choy K K H, McKay G and Porters J F (1999). Resources Conservation Recycle. 27: 57-60.
Guptha V, Agarwal J and Veena M P (2007). “Adsorption Studies of Cu (ii) from aqueous medium by Tamarind Kernal Powder”. Resources Journal of Chemistry and Environment. 11(1): 40-43.
Okuonrobo D O, Oboh I O and Aluyor E. O. (2011). “Comparative adsorption isotherms in bleaching palm oil with fuller’s earth and Ekiti Clay. Journal of the Nigerian Society of Chemical Engineers. 26(1) :44-59.
Jinadu O W (2010). “Treatment of brewery waste water effluent using activated carbon produced from coconut shell via chemical activation method”. B.Sc thesis, University of Lagos, Lagos, Nigeria.
Ebenso E E and Ekpe U J (1996). “Kinetics study of corrosion and corrosion inhibition of mild steel in H2SO4 using carica papaya leave extract”. West Africa Journal of Biology and Applied Chemistry. 41: 21-27.
Ebenso E E, Ekpe U J and Ibok U J (1998). “Studies on the inhibition of mild steel corrosion by some plant extracts in acidic medium. Discovery and Innovative. 10: 52-59.
El-Etre A Y and Abdallah M (2000). “Natural Honey as corrosion inhibitor for metals and alloys: Carbon-steel in high saline water”. Corrosion Science. 42: 731-738.
Ekpe U J, Ebenso E E and Ibok U J (1994). “Inhibitory action of Azadirachtaindica leaves extract on the corrosion of mild steel in H2SO4”. Journal of West Africa Science Association. 37: 13-30.
Kliskic M , Radoservic J, Gudic S and Katalinic V. (2000). “Aqueous extract of Rosemarium officinalis as inhibitor of Al-Mg alloy of corrosion in chloride solution”. Journal of Applied Electrochemistry. 30: 823-830.
Zucchi F and Omar I H (1985). “Plant extracts corrosion inhibitors of mild steel in HCL solution. Surface technology. 24: 391-399.