Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights
The rising demand for eco-friendly corrosion inhibitors has intensified efforts to find sustainable alternatives to hazardous chemical inhibitors widely used in industry. Mild steel, although commonly utilized in acidic environments, is prone to significant corrosion, necessitating effective solutio...
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Elsevier
2025-01-01
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| Series: | Results in Surfaces and Interfaces |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666845924001818 |
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| author | Femiana Gapsari Putu H. Setyarini Khairul Anam Saprizal Hadisaputra Syarif Hidayatullah Purnami Abdul Mudjib Sulaiman Chin Wei Lai |
| author_facet | Femiana Gapsari Putu H. Setyarini Khairul Anam Saprizal Hadisaputra Syarif Hidayatullah Purnami Abdul Mudjib Sulaiman Chin Wei Lai |
| author_sort | Femiana Gapsari |
| collection | DOAJ |
| description | The rising demand for eco-friendly corrosion inhibitors has intensified efforts to find sustainable alternatives to hazardous chemical inhibitors widely used in industry. Mild steel, although commonly utilized in acidic environments, is prone to significant corrosion, necessitating effective solutions to prevent structural degradation. This study investigates the potential of Andrographis paniculata leaf extract (APLE) as a sustainable, green corrosion inhibitor for mild steel in concentrated sulfuric acid, a condition representative of harsh industrial environments. Using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods, APLE demonstrated a high inhibition efficiency of 95.14% at a concentration of 4000 ppm, effectively reducing both anodic and cathodic corrosion reactions. Scanning electron microscopy (SEM) revealed a protective layer formation on the steel surface, significantly reducing corrosion. The adsorption of APLE followed the Langmuir isotherm, indicating monolayer coverage, while quantum chemical calculations validated APLE's electron-donating capability, enhancing surface stability through physisorption. These findings underscore APLE as a viable, eco-friendly alternative to conventional inhibitors, offering promising applications in various acidic environments. |
| format | Article |
| id | doaj-art-b4e0132425654ab08b7f14ed75df2116 |
| institution | DOAJ |
| issn | 2666-8459 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Surfaces and Interfaces |
| spelling | doaj-art-b4e0132425654ab08b7f14ed75df21162025-08-20T02:53:12ZengElsevierResults in Surfaces and Interfaces2666-84592025-01-011810036110.1016/j.rsurfi.2024.100361Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insightsFemiana Gapsari0Putu H. Setyarini1Khairul Anam2Saprizal Hadisaputra3Syarif Hidayatullah4 Purnami5Abdul Mudjib Sulaiman6Chin Wei Lai7Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University, MT Haryono 167, Malang, 65145, Indonesia; Corresponding author.Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University, MT Haryono 167, Malang, 65145, IndonesiaDepartment of Mechanical Engineering, Faculty of Engineering, Brawijaya University, MT Haryono 167, Malang, 65145, IndonesiaChemistry Education Division, University of Mataram, Jalan Majapahit No 62, Mataram, 83125, IndonesiaDepartment of Mechanical Engineering, Faculty of Engineering, University of Mataram, Jalan Majapahit No 62, Mataram, 83125, IndonesiaDepartment of Mechanical Engineering, Faculty of Engineering, Brawijaya University, MT Haryono 167, Malang, 65145, IndonesiaDepartment of Mechanical Engineering, Faculty of Engineering, Brawijaya University, MT Haryono 167, Malang, 65145, Indonesia; Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta, 55281, IndonesiaNanotechnology and Catalysis Research Centre, Institute for Advanced Studies, Universiti Malaya, Level 3, Block A, Kuala Lumpur, 50603, MalaysiaThe rising demand for eco-friendly corrosion inhibitors has intensified efforts to find sustainable alternatives to hazardous chemical inhibitors widely used in industry. Mild steel, although commonly utilized in acidic environments, is prone to significant corrosion, necessitating effective solutions to prevent structural degradation. This study investigates the potential of Andrographis paniculata leaf extract (APLE) as a sustainable, green corrosion inhibitor for mild steel in concentrated sulfuric acid, a condition representative of harsh industrial environments. Using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods, APLE demonstrated a high inhibition efficiency of 95.14% at a concentration of 4000 ppm, effectively reducing both anodic and cathodic corrosion reactions. Scanning electron microscopy (SEM) revealed a protective layer formation on the steel surface, significantly reducing corrosion. The adsorption of APLE followed the Langmuir isotherm, indicating monolayer coverage, while quantum chemical calculations validated APLE's electron-donating capability, enhancing surface stability through physisorption. These findings underscore APLE as a viable, eco-friendly alternative to conventional inhibitors, offering promising applications in various acidic environments.http://www.sciencedirect.com/science/article/pii/S2666845924001818Andrographis paniculate leaf extract (APLE)CorrosionConcentrated acidInhibitor |
| spellingShingle | Femiana Gapsari Putu H. Setyarini Khairul Anam Saprizal Hadisaputra Syarif Hidayatullah Purnami Abdul Mudjib Sulaiman Chin Wei Lai Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights Results in Surfaces and Interfaces Andrographis paniculate leaf extract (APLE) Corrosion Concentrated acid Inhibitor |
| title | Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights |
| title_full | Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights |
| title_fullStr | Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights |
| title_full_unstemmed | Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights |
| title_short | Efficacy of Andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid: Experimental and computational insights |
| title_sort | efficacy of andrographis paniculata leaf extract as a green corrosion inhibitor for mild steel in concentrated sulfuric acid experimental and computational insights |
| topic | Andrographis paniculate leaf extract (APLE) Corrosion Concentrated acid Inhibitor |
| url | http://www.sciencedirect.com/science/article/pii/S2666845924001818 |
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