Inhibition of Mild Steel Corrosion in Acidic Medium by Extract of <i>Spilanthes Uliginosa</i> Leaves

Durodola, Solomon S.; Adekunle, Abolanle S.; Olasunkanmi, Lukman O.; Oyekunle, John Adekunle Oyedele

doi:10.1002/elan.202060227

Cited by 14 publications

(6 citation statements)

References 31 publications

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“…From these calculations,

K_{a d s}

is directly proportional to the standard Gibbs free energy change, and the more negative

{Δ G}_{a d s}^{o}

, the higher the BZ molecules adsorbability. Additionally, the negative value of

{Δ G}_{a d s}^{o}

assumes that the BZ molecules are spontaneously adsorbed on the MS interface [42]. Also, the strength of the bond between adsorbent and adsorbate is explained from the

K_{a d s}

values as seen in Table 3.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Corrosion Inhibition of Mild Steel in Sulfuric Acid by a Newly Synthesized Schiff Base: An Electrochemical, DFT, and Monte Carlo Simulation Study

et al. 2020

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Effects of using a synthesized aminothiazole (BZ) Schiff base at different concentrations with and without the addition of 1 mM of KI on the corrosion mitigation of mild steel (MS) in 0.5 M sulphuric acid (H 2 SO 4) solutions are studied electrochemically using direct and alternating currents (DC and AC) techniques. Besides, the adsorption and thermodynamic parameters are calculated in a temperature range of 293-323 K. Furthermore, Mott-Schottky analysis is used to study the type of oxide layer on the MS surface. Quantum chemical calculations and Monte Carlo simulation techniques are used, and both confirmed the experimental results.

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“…From these calculations,

K_{a d s}

is directly proportional to the standard Gibbs free energy change, and the more negative

{Δ G}_{a d s}^{o}

, the higher the BZ molecules adsorbability. Additionally, the negative value of

{Δ G}_{a d s}^{o}

assumes that the BZ molecules are spontaneously adsorbed on the MS interface [42]. Also, the strength of the bond between adsorbent and adsorbate is explained from the

K_{a d s}

values as seen in Table 3.…”

Section: Resultsmentioning

confidence: 99%

“…where I KI+BZ =I KI + I BZ , I KI , and I BZ are the inhibition efficiency of I − ions and the BZ inhibitor, respectively.

I_{K I + B Z}^{'}

, is the inhibition efficiency of the BZ inhibitor when combined with I − ions [42].…”

Section: Resultsmentioning

confidence: 99%

Corrosion Inhibition of Mild Steel in Sulfuric Acid by a Newly Synthesized Schiff Base: An Electrochemical, DFT, and Monte Carlo Simulation Study

et al. 2020

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“…Indeed, in a recent study, plant belonging to the same family of Spilanthes has been used for corrosion study. Durodola et al, have used the different concentration of methanolic extract of Spilanthes uliginosa leaves for the investigation of corrosion of mild steel in 2.0 M HCl [22]. However, to the best of our knowledge the aqueous leaves extract of Spilanthes acmella plant has been rarely investigated for its anticorrosion properties.…”

Section: Introductionmentioning

confidence: 99%

Spilanthes acmella Leaves Extract for Corrosion Inhibition in Acid Medium

et al. 2021

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In the present study, the corrosion inhibition effect of Spilanthes acmella aqueous leaves extract (SA-LE) on mild steel was investigated in 1.0 M HCl solution at different temperature using weight loss, Tafel polarization, linear polarization resistance (LPR), and electrochemical impedance (EIS) measurements. Adsorption of inhibitor on the surface of the mild steel obeyed both Langmuir and Temkin adsorption isotherms. The thermodynamic and kinetic parameters were also calculated to determine the mechanism of corrosion inhibition. The inhibition efficiency was found to increase with an increase in the inhibitor concentration i.e., Spilanthes acmella aqueous leaves extract, however, the inhibition efficiency decreased with an increase in the temperature. The phytochemical constituents with functional groups including electronegative hetero atoms such as N, O, and S in the extract adsorbed on the metal surface are found responsible for the effective performance of the inhibitor, which was confirmed by Fourier-transform infrared spectroscopy (FT-IR) and ultraviolet–visible spectroscopic (UV-Vis) studies. Protective film formation against corrosion was confirmed by scanning electron microscopy (SEM), atomic force microscopy (AFM), and contact angle studies. The result shows that the leaves extract acts as corrosion inhibitor and is able to promote surface protection by blocking active sites on the metal.

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“…Preferably, the biomass that remains after the nutritional constituents have been removed, known as bio-waste can be used as substrate for a variety of green chemical purposes. The metallic surface protection is one of the domains in which green chemistry is extensively employed in biomass-derived products delivering new ideas in order to reduce ecological consequences and wastes [66][67][68][69]. The authors of the latest research on the usage of peel waste of citrus for various purposes noted how wastes can provide considerable chemicals at low cost and with ease of access.…”

Section: Green Corrosion Inhibitor Based On Biomass Waste/agro-wastementioning

confidence: 99%

Anti-Corrosive Potential of the Sustainable Corrosion Inhibitors Based on Biomass Waste: A Review on Preceding and Perspective Research

Thakur

Sharma

Ganjoo

et al. 2022

J. Phys.: Conf. Ser.

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Over the past decade, green chemistry has been emphasizing the importance of environmental sustainability and human health, aiming to minimize toxins and reducing wastes in an economically beneficial manner. The field of metallic materials deterioration, generally faced by the utilization of toxic compounds, discovered a promising research field in green chemistry. The application of inhibitors is a well-known strategy when metal corrosion needs to be avoided, prevented, controlled or mitigate. Green inhibitors are readily available, biodegradable, ecologically acceptable, sustainable and renewable sources. Their esteem broadens the numerous ranges of potential applications in various sectors besides “waste to energy” in the context of a circular economy. Extensive research on various biomass wastes such as corn stalks, nutshells, straw, forestry residue and plant waste-derived inhibitors tremendously has been utilized in corrosion mitigation in different industries to sustain the environment. All the mentioned aspects are the topic of this current review, which is meant as constructive criticism to spotlight the use of biomass waste as efficient green inhibitors in order to re-evaluate their viability and debate prospective research in the field, which is still lacking justification. As a result, this article aims to solve two current problems; waste and corrosion which will benefit both the environment and industry.

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Inhibition of Mild Steel Corrosion in Acidic Medium by Extract of Spilanthes Uliginosa Leaves

Cited by 14 publications

References 31 publications

Corrosion Inhibition of Mild Steel in Sulfuric Acid by a Newly Synthesized Schiff Base: An Electrochemical, DFT, and Monte Carlo Simulation Study

Corrosion Inhibition of Mild Steel in Sulfuric Acid by a Newly Synthesized Schiff Base: An Electrochemical, DFT, and Monte Carlo Simulation Study

Spilanthes acmella Leaves Extract for Corrosion Inhibition in Acid Medium

Anti-Corrosive Potential of the Sustainable Corrosion Inhibitors Based on Biomass Waste: A Review on Preceding and Perspective Research

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