Thermodynamics and adsorption study of the corrosion inhibition of mild steel by Euphorbia heterophylla L. extract in 1.5 ​M HCl

Akinbulumo, Olatunde Alaba; Odejobi, Oludare Johnson; Odekanle, Ebenezer Leke

doi:10.1016/j.rinma.2020.100074

Cited by 142 publications

(67 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The Gibbs free energy is a thermodynamic quantity that may inform about the spontaneity of the system. Gibbs free energy (∆G°) can be obtained by the following equation [115,116]:…”

Section: Thermodynamic Parametersmentioning

confidence: 99%

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Hamoudi

Hamdi

Brendlé

2021

Ecological Chemistry and Engineering S

View full text Add to dashboard Cite

The use of antibiotics for breeding and for humans increased considerably in recent years, as a dietary supplement to enhance animal growth. This frequent use leads to the detection of residues in water and wastewater. Thus, the emergence of new strains of bacteria resistant to these antibiotics and, can lead to incurable diseases of livestock, and can lead to a possible transmission of these strains to humans. The purpose of this work is to develop new materials based on treated Maghnia clay, activated carbon, cement, and PVA polymer, named geomaterials. These materials were intended for the containment of hazardous wastes in landfills. The removal of tetracycline from aqueous solution was tested by adsorption onto synthesised geomaterials and their mineral constituents. Adsorption kinetics revealed that tetracycline was rapidly retained by GM and ATMa. This was confirmed by the relatively short equilibrium time of 30 min. The pseudo-second-order and intraparticle models well fitted the adsorption kinetic of the TC-adsorbent studied systems. It was noticed that the adsorption kinetic passes through several mechanisms, was demonstrated by the multi-linearity on the plot of qt against the square root of t. The adsorption capacity (Qa ) of TC onto GM is pH-dependent. Indeed, Qa reaches a maximum value (Qa = 12.58 mg ∙ g–1 at a very acidic pH of 2, then the adsorbed amount decreases to reach a minimum value at pH of 8, and for basic pHsQa increases up to 10 mg ∙ g–1.

show abstract

“…The Gibbs free energy is a thermodynamic quantity that may inform about the spontaneity of the system. Gibbs free energy (∆G°) can be obtained by the following equation [115,116]:…”

Section: Thermodynamic Parametersmentioning

confidence: 99%

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Hamoudi

Hamdi

Brendlé

2021

Ecological Chemistry and Engineering S

View full text Add to dashboard Cite

show abstract

“…As previously reported in the presence of inhibitor, if E corr shift is greater than 85 mV with respect to E corr in uninhibited solution, it can be considered cathodic or anodic type; otherwise, it is mixed. In the present study, the maximum deviation range was less than 85 mV, suggesting that ABTZ behaved as a mixed-type inhibitor [26][27][28][29][30][31].…”

Section: Potentiodynamic Polarisation Studiesmentioning

confidence: 73%

Effect of 1-Acetyl-1H-Benzotriazole on Corrosion of Mild Steel in 1M HCl

Kamble

Dubey

2021

J. Sci. Res.

View full text Add to dashboard Cite

The corrosion inhibition study of 1-acetyl-1H-benzotriazole (ABTZ) on mild steel in 1M HCl solution has been investigated using different techniques like weight loss, open circuit potential (OCP), and potentiodynamic polarization. Results showed that ABTZ inhibited mild steel corrosion in acid solution and indicated that the inhibition efficiencies increased with the increase in inhibitor concentration. The polarization curves revealed that the studied compound behaved as a mixed-type of inhibitor. The adsorption of the inhibitor on the surface of mild steel in the corrosive environment followed the Langmuir isotherm. The presence of thin film formed due to adsorption of ABTZ on mild steel surface is further confirmed by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX).

show abstract

“…The corrosion inhibitive property of Gentiana olivieri [12] was observed in 0.5M HCl. Irvingia wombolu [13] Euphorbia heterophylla L [14] Cocoa leaf [15] showed good inhibition efficiency for mild steel in 1.5M HCl. Tephrosia purpurea [16] extract prevented the corrosion on the mild steel surface in 1N HCl.…”

Section: Introductionmentioning

confidence: 99%

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Neriyana

Alva

2020

Chemistry Africa

View full text Add to dashboard Cite

The anticorrosive activity of Combretum indicum (CI) leaf extract has been examined on mild steel corrosion in 1M HCl by using weight loss and electrochemical measurement techniques. The results of these experimental techniques have consistent in confirming the effect of the CI leaf extract on corrosion inhibition and a mechanism for the inhibition was proposed. The dissolution rate of steel in acidic solution was found to be sensitive to the concentration of CI leaf extract and the corrosion rate reduces when the concentration of CI leaf extract is increased and reaches the high protection efficiency. The potentiodynamic polarization study confirms the mixed mode of inhibition. Ultraviolet-visible (UV) and Fourier-transform infrared (FTIR) spectroscopic techniques were performed to evaluate the phenomenon of adsorption in the plant extract and the functional groups. The surface morphology analysis (SEM) further corroborates the adsorption of inhibitor molecules over the metal surface.

show abstract

Thermodynamics and adsorption study of the corrosion inhibition of mild steel by Euphorbia heterophylla L. extract in 1.5 M HCl

Cited by 142 publications

References 20 publications

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Effect of 1-Acetyl-1H-Benzotriazole on Corrosion of Mild Steel in 1M HCl

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Contact Info

Product

Resources

About

Thermodynamics and adsorption study of the corrosion inhibition of mild steel by Euphorbia heterophylla L. extract in 1.5 ​M HCl

Cited by 142 publications

References 20 publications

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Effect of 1-Acetyl-1H-Benzotriazole on Corrosion of Mild Steel in 1M HCl

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Contact Info

Product

Resources

About

Thermodynamics and adsorption study of the corrosion inhibition of mild steel by Euphorbia heterophylla L. extract in 1.5 M HCl