期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：5
页码：1718-1728
出版社：University of Mohammed Premier Oujda
摘要：The chemical composition of essential oil of M. suaveolens isolated from Al Hoceima National Park, Morocco was performed by CG/SM, and a total of 43 components were identified. The essential oil was characterized by Piperitenone oxide (44.3%) as a mainly constituent. The other major components were Z-Piperitone oxide (19.1%), Terpinen-4-ol (3.8%), 1,2-Epoxymenthyl acetate (3,5%) and trans-hydrate Sabinene (3.1%). The aqueous extract was screened for his activity antioxidant by DPPH free radical scavenging. It has showed a moderate reducing power against acid ascorbic and BHA as standards. The essential oil (MSO) and the aqueous extract (MSE) are also screened for their inhibition aptitude as potential green corrosion inhibitors of mild steel for acidic media. the effect of inhibition has been studied using weight loss measurements and electrochemical techniques (potentiodynamic polarization curves, and electrochemical impedance spectroscopy) in the presence of different concentrations of MSO & MSE ranging from 0.25 g/L to 2 g/L. Potentiodynamic polarization showed that MSE and MSO behaves as mixed type inhibitors. Adsorption of M. Suaveolens on the steel surface followed a Langmuir’s isotherm and the thermodynamic parameters were determined and discussed.
