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<p>The research focuses on the inhibitor properties of young jackfruit peels—a large amount of waste discarded during jackfruit harvesting-for carbon steel in acidic solution pH 1 containing 0.6 M NaCl to utilize this agricultural byproduct rich in organic compounds that protect metals, ensuring both economic viability and environmental sustainability. Chemical characterization techniques (FTIR, phytochemical quantification, LC-QToF-MS analysis) were used to identify and quantify individual organic components in the extract. In addition, electrochemical techniques (EIS, PD methods) were used to characterize electrochemical and inhibition properties of the extract for the carbon steel. Concurrently, surface characterization techniques (SEM, EDS, and XPS) were used to investigate the surface morphologies, elemental distributions, and chemical states under the influence of the added inhibitor. The results indicated that the young jackfruit peel water extract (YJPWE) could dissolve easily in acidic solution pH 1 containing 0.6 M NaCl and exhibits high inhibition performance up to 96.18 ± 1.31% at 3000&#xa0;ppm inhibitor. This inhibitory ability could be owing to enriched surface charges that promote the adsorption process of YJPWE species to form a protective layer. Unlike previous studies mainly conducted in neutral NaCl or simple acid solutions, the work promotes the new use of agricultural waste as a potential candidate to add to the eco-friendly inhibitor system for preventing steel corrosion under low-pH containing chloride conditions. In addition, a combination of modern research methods in this study was employed to establish the relationship between natural compounds, adsorption behavior, and inhibition performance.</p>

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Inhibition characterizations of young jackfruit peel water extract for carbon steel in an aggressively acidic solution containing 0.6 M NaCl

  • 期刊论文

  • 发表日期：

    2026年7月14日

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  • Hoa Thi-Thu-Nguyen,
  • Thi-Bich-Ngoc Dao,
  • Kim-Long Duong-Ngo,
  • Thanh-Nha Tran,
  • Casen Panaitescu,
  • Hoang Dung Nguyen,
  • S. V. Prabhakar Vattikuti,
  • Nam Nguyen Dang

摘要

The research focuses on the inhibitor properties of young jackfruit peels—a large amount of waste discarded during jackfruit harvesting-for carbon steel in acidic solution pH 1 containing 0.6 M NaCl to utilize this agricultural byproduct rich in organic compounds that protect metals, ensuring both economic viability and environmental sustainability. Chemical characterization techniques (FTIR, phytochemical quantification, LC-QToF-MS analysis) were used to identify and quantify individual organic components in the extract. In addition, electrochemical techniques (EIS, PD methods) were used to characterize electrochemical and inhibition properties of the extract for the carbon steel. Concurrently, surface characterization techniques (SEM, EDS, and XPS) were used to investigate the surface morphologies, elemental distributions, and chemical states under the influence of the added inhibitor. The results indicated that the young jackfruit peel water extract (YJPWE) could dissolve easily in acidic solution pH 1 containing 0.6 M NaCl and exhibits high inhibition performance up to 96.18 ± 1.31% at 3000 ppm inhibitor. This inhibitory ability could be owing to enriched surface charges that promote the adsorption process of YJPWE species to form a protective layer. Unlike previous studies mainly conducted in neutral NaCl or simple acid solutions, the work promotes the new use of agricultural waste as a potential candidate to add to the eco-friendly inhibitor system for preventing steel corrosion under low-pH containing chloride conditions. In addition, a combination of modern research methods in this study was employed to establish the relationship between natural compounds, adsorption behavior, and inhibition performance.