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Green technology for sustainable surface protection of steel from corrosion: a review |
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| Authors: | Al Shibli Fatema Said Zahir Said Bose Subrajit Kumar P. Senthil Rajasimman M. Rajamohan N. Vo Dai-Viet N. |
| Affiliation: | 1.Chemical Engineering Section, Faculty of Engineering, Sohar University, 311, Sohar, Oman ;;2.Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India ;;3.Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India ;;4.Department of Chemical Engineering, Annamalai University, Annamalai Nagar, Chidambaram, 608002, India ;;5.Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam ; |
| Abstract: | Plants contain substances that inhibit corrosion. Here we review biomass-based corrosion inhibitors from plant leaves, nuts, and fruit peels, after treatment with acids, bases or saline solutions. The mechanism of corrosion inhibition involves a monolayer coverage, according to isotherm and Langmuir models. Plant extract-based corrosion inhibitors contain heteroatoms whose electrons pair in the p-electron level in multiple bonds and the vacant d-orbitals of iron. Corrosion inhibition under marine conditions involves various chemical interactions between metals and dissolved ionic components. |
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