SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2025, Vol. 80 ›› Issue (4): 281-302.DOI: 10.1016/j.cjche.2024.10.040

Previous Articles     Next Articles

Green corrosion inhibition of mild steel in acidic media using Datura stramonium seed extract: A study for sustainable engineering applications

Kaoutar Hjouji1, Ibrahim Atemni1, Rajesh Haldhar2, Moussa Ouakki3,4, Tarik Ainane5, Mustapha Taleb1, Seong-Cheol Kim2, Zakia Rais1   

  1. 1 Laboratory of Engineering, Electrochemistry, Modeling and Environment Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco;
    2 School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea;
    3 Laboratory of Organic Chemistry, catalysis and Environment, Faculty of Sciences, Ibn Tofaïl University, Kenitra 14000, Morocco;
    4 National Higher School of Chemistry, Ibn Tofail University, PB 133-14050 Kenitra, Morocco;
    5 Higher School of Technology, Sultan Moulay Slimane University, PB 170, Khenifra 54000, Morocco
  • Received:2024-08-14 Revised:2024-10-03 Accepted:2024-10-11 Online:2025-02-25 Published:2025-04-28
  • Contact: Kaoutar Hjouji,E-mail:kaoutar.hjouji@usmba.ac.ma;Rajesh Haldhar,E-mail:rajeshhaldhar.lpu@gmail.com
  • Supported by:
    This research was supported by the NRF (National Research Foundation) of Korea, funded by the Basic Science Research Program through the Ministry of Education (2020R1I1A3052258). Additionally, this project was carried out with the support of the “2024 System Semiconductor Technology Development Support Project” of Chungbuk Technopark.

Green corrosion inhibition of mild steel in acidic media using Datura stramonium seed extract: A study for sustainable engineering applications

Kaoutar Hjouji1, Ibrahim Atemni1, Rajesh Haldhar2, Moussa Ouakki3,4, Tarik Ainane5, Mustapha Taleb1, Seong-Cheol Kim2, Zakia Rais1   

  1. 1 Laboratory of Engineering, Electrochemistry, Modeling and Environment Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco;
    2 School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea;
    3 Laboratory of Organic Chemistry, catalysis and Environment, Faculty of Sciences, Ibn Tofaïl University, Kenitra 14000, Morocco;
    4 National Higher School of Chemistry, Ibn Tofail University, PB 133-14050 Kenitra, Morocco;
    5 Higher School of Technology, Sultan Moulay Slimane University, PB 170, Khenifra 54000, Morocco
  • 通讯作者: Kaoutar Hjouji,E-mail:kaoutar.hjouji@usmba.ac.ma;Rajesh Haldhar,E-mail:rajeshhaldhar.lpu@gmail.com
  • 基金资助:
    This research was supported by the NRF (National Research Foundation) of Korea, funded by the Basic Science Research Program through the Ministry of Education (2020R1I1A3052258). Additionally, this project was carried out with the support of the “2024 System Semiconductor Technology Development Support Project” of Chungbuk Technopark.

Abstract: This study investigates the corrosion inhibition potential of Datura stramonium seed extracts on mild steel in 1.0 mol·L-1 HCl and 0.5 mol·L-1 H2SO4, utilizing both ethanolic and aqueous extracts as eco-friendly inhibitors. Electrochemical techniques, thermodynamic studies, and quantum chemical calculations were employed to evaluate the adsorption mechanism and inhibitory action at the metal/electrolyte interface. Maximum inhibition efficiencies of 93.1% in HCl and 97.7% in H2SO4 were achieved with the ethanolic extract at a concentration of 0.2 g·L-1, while the aqueous extract demonstrated 93.8% inhibition in HCl and 96.6% in H2SO4. Polarization curves indicated mixed-type inhibition with a slight anodic bias. The thermodynamic analysis of two extracts in both environments indicated that the Kads increased and that the ΔGads were close to -40 kJ·mol-1, suggesting that the adsorption followed the Langmuir isotherm, indicating a combination of physical and chemical adsorption. SEM/EDX analysis confirmed the formation of a protective layer, while quantum chemical studies further validated strong adsorption, evidenced by a low ΔE of 2.396 eV and an adsorption energy of -878 kcal·mol-1 (1 kcal·mol-1 = 4.18 kJ·mol-1). These results demonstrate that Datura stramonium extracts are promising inhibitors, particularly in sulfuric acid, for industrial applications. Reason: Improved clarity, vocabulary, and technical accuracy while maintaining the original meaning.

Key words: Extraction, Solvents, Datura stramonium extract, Corrosion, Adsorption and morphology

摘要: This study investigates the corrosion inhibition potential of Datura stramonium seed extracts on mild steel in 1.0 mol·L-1 HCl and 0.5 mol·L-1 H2SO4, utilizing both ethanolic and aqueous extracts as eco-friendly inhibitors. Electrochemical techniques, thermodynamic studies, and quantum chemical calculations were employed to evaluate the adsorption mechanism and inhibitory action at the metal/electrolyte interface. Maximum inhibition efficiencies of 93.1% in HCl and 97.7% in H2SO4 were achieved with the ethanolic extract at a concentration of 0.2 g·L-1, while the aqueous extract demonstrated 93.8% inhibition in HCl and 96.6% in H2SO4. Polarization curves indicated mixed-type inhibition with a slight anodic bias. The thermodynamic analysis of two extracts in both environments indicated that the Kads increased and that the ΔGads were close to -40 kJ·mol-1, suggesting that the adsorption followed the Langmuir isotherm, indicating a combination of physical and chemical adsorption. SEM/EDX analysis confirmed the formation of a protective layer, while quantum chemical studies further validated strong adsorption, evidenced by a low ΔE of 2.396 eV and an adsorption energy of -878 kcal·mol-1 (1 kcal·mol-1 = 4.18 kJ·mol-1). These results demonstrate that Datura stramonium extracts are promising inhibitors, particularly in sulfuric acid, for industrial applications. Reason: Improved clarity, vocabulary, and technical accuracy while maintaining the original meaning.

关键词: Extraction, Solvents, Datura stramonium extract, Corrosion, Adsorption and morphology