Sargassum muticum extract based on alginate biopolymer as a new efficient biological corrosion inhibitor for carbon steel in hydrochloric acid pickling environment: Gravimetric, electrochemical and surface studies
| Autor: | Zahira Belattmania, Brahim Sabour, Fouad Bentiss, Abdeltif Reani, Abdelaziz Sahibed-Dine, charafeddine Jama, I. Nadi |
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| Přispěvatelé: | Université Chouaib Doukkali (UCD), Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Ecole Nationale Supérieure de Chimie de Lille (ENSCL), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
Alginates
Surface Properties Eco-friendly corrosion inhibitor Sargassum muticum Hydrochloric acid 02 engineering and technology HCl Biochemistry Corrosion 03 medical and health sciences Corrosion inhibitor chemistry.chemical_compound symbols.namesake Adsorption Carbon steel Structural Biology Pickling XPS Molecular Biology 030304 developmental biology Biological macromolecules 0303 health sciences EIS biology Sargassum Langmuir adsorption model Electrochemical Techniques [CHIM.MATE]Chemical Sciences/Material chemistry General Medicine 021001 nanoscience & nanotechnology biology.organism_classification [CHIM.POLY]Chemical Sciences/Polymers chemistry Steel 13. Climate action Chemisorption symbols Hydrochloric Acid 0210 nano-technology Nuclear chemistry |
| Zdroj: | International Journal of Biological Macromolecules International Journal of Biological Macromolecules, Elsevier, 2019, International Journal of Biological Macromolecules, pp.137-149. ⟨10.1016/j.ijbiomac.2019.08.253⟩ International Journal of Biological Macromolecules, 2019, International Journal of Biological Macromolecules, pp.137-149. ⟨10.1016/j.ijbiomac.2019.08.253⟩ |
| ISSN: | 0141-8130 |
| DOI: | 10.1016/j.ijbiomac.2019.08.253 |
| Popis: | International audience; The inhibition effect of the invasive brown seaweed Sargassum muticum extract (ESM), harvested from the Atlantic coast of Morocco, against the corrosion of carbon steel (CS) in 1 M HCl medium was studied for the first time using gravimetric, electrochemical and surface techniques. The methanolic crude extract of Sargassum muticum (ESM) is rich in alginate biopolymer. The evaluation corrosion tests showed that this algal extract acts as a good mixed corrosion inhibitor for CS substrate in 1 M HCl since inhibition efficiency of 97% was reached with 1 g/L of ESM at 303 K. AC impedance findings showed that the seaweed extract adding in the corrosive electrolyte increases the polarization resistance and conversely decreases the charge capacitance at the interface. Adsorption of ESM on the substrate surface followed the Langmuir adsorption isotherm. X-ray photoelectron spectroscopy analyses (XPS) demonstrated that the corrosion inhibition mechanism of CS substrate in 1 M HCl environment by the investigated algal extract is typical of the chemisorption process and the protective barrier is mainly formed by the adsorbed biological macromolecules. |
| Databáze: | OpenAIRE |
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