Welcome to JENT its Monday 22nd of January 2018

Journal of Environmental Nanotechnology

(A Quarterly Peer-reviewed and Refereed International Journal)
ISSN(Print):2279-07 48; ISSN(Online):2319-5541

Datura Metal as a Potential Corrosion Inhibitor for Aluminium in 1M HCL solution


The corrosion inhibition of commercial Al in 1M HCl medium by Datura metel (DM) leaves extract was carried out using chemical and electrochemical techniques. Effect of temperature, immersion time and acid concentration were discussed. The inhibition efficiency increases with increase in concentration. The inhibition efficiencies were also evaluated using hydrogen evolution technique at 303K. Using potentiodynamic polarisation technique the extract proved that mixed type inhibitor. EIS showed that the charge transfer control s the corrosion process. These results revealed that Datura metel (DM) was an effective inhibitor and theinhibition efficiencies obtained from weight loss, hydrogen evolution measurements, potentiodynamic polarisatio n and ac impedance technique were in good agreement. Phytochemical analyses show that the leaves extract containing alkaloid and steroids. These are responsible for inhibition. The inhibitive action of the extract was discussed using Langmuir adsorption isotherm. Thermodynamic and kinetic parameters such as activation energy,free energy of adsorption, change in entropy and change in enthalpy were also calculated. The negative value of the free energy of adsorption indicates that the adsorption of inhibitor molecules was spontaneous. Phy sical adsorption proposed from activation parameters.

Article Type: Research Article

Corresponding Author: S. Sathiya 1  

Email: sathiyasdk@gmail.com

This article has not yet been cited.

S. Sathiya 1*,  K. Bharathi 2,  S. Geetha 3.  

1, 2, 3. Department of Chemistry, Sri Sarada College for Women, Salem, TN, India.

J. Environ. Nanotechnol. Volume 3, No.1 pp.01-08
ISSN: 2279-0748 eISSN: 2319-5541
Download Citation


Al-Andis, N., Khamis, E., Al-Mayouf, A.and Aboul Enein, H., Kinetics of Steel Dissolution in the Presence of Some Thiouracil Derivatives, Corros.Prev.Cont., 42, 13-18 (1995).

Bosch, R. W., Hubrecht, J., Bogaerts, W. F. and Syrett , B. C., Electrochemical Frequency Modulation : A New Electrochemical Technique for Online Corrosion Monitoring, Corros., 57, 60-70 (2001). http:/ /dx.doi.org/10.5006/1.3290331

El-Etre, A. Y ., Inhibition of aluminium corrosion using Opuntia extract, Corros. Sci., 45,2485-2495(2003) . http://dx.doi.org/10.1016/S0010-938X(03)00066-0

Gunavathy, N. and Murugavel, S. C., Corrosion Inhibition of Mild Steel in acid medium using MUSA Acuminata Flower extract, J. Environ. Nanotecnol., 2(4), 21-27 (2013). http://dx.doi.org/10.13074/ jent.2013.12.132049

Jones, D. A., Principles and Prevention of Corrosion, II Edn., USA (1996).

Jothi, S. and Ravichandran, J., Inhibitive effect of leaves extract of coccinia indica on the corrosion of mild steel in hydrochloric acid, J. Environ. Nanotecnol., 2(4), 45-50 (2013). http://dx.doi.org/10.13074/ jent.2013.12.132042

Khadom,A. A., Yaro,A. S. , Kadhum,A. A. H. , AlTaie, A. S. , Musa, A. Y., The Effect of Temperature and Acid Concentration on Corrosion ofLow Carbon Steel in Hydrochloric Acid Media, Amer. J. Appl. Sci., 6, 1403-1409(2009). http://dx.doi.or g/ 10.4152/pea.200904517

Obot, I. B. and Obi-Egbedi, N. O., Ipomoea Involcrataasan Ecofriendly Inhibitor for Aluminium  in Alkaline Medium, Port . Electrochim. Acta., 27, 517-524                                             (2009). http://dx.doi.org/10.4152/pea.200904517 

Sharma,B.K., Electroche mistry ,Krishna Prakashan Media (P) Ltd.., New Delhi (2002).