Experimental and Theoretical Studies of Eosin Y Dye as Corrosion Inhibitors for Carbon Steel in Perchloric Acid Solution

Attar, Tarik; Benchadli, Abbes; Messaoudi, Boulanouar; Naceur, Benhadria; Choukchou-Braham, Esma

doi:10.9767/bcrec.15.2.7753.454-464

Cited by 23 publications

(29 citation statements)

References 50 publications

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“…Langmuir model is based on the hypothesis that each site of metal surface has adsorbed species (Equation 8) [13]:…”

Section: Adsorption Isothermmentioning

confidence: 99%

“…The study of corrosion process and its inhibition by organic compounds, such as dyes, is a very active field of research in acidic or basic environments [7][8][9][10][11][12][13]. Dyes have long been applied in the coloring, printing, paper, leather, textile, plastics, cosmetic, medical, pharmaceutical, and agri-food industries, and in recent times as corrosion inhibitors of metals and alloys in aggressive environments [14,15].…”

mentioning

confidence: 99%

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Use of Experimental Designs to Evaluate the Influence of Methyl Green Dye as a Corrosion Inhibitor for Carbon Steel in Perchloric Acid

2021

MJCHEM

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The aim of this research study was to apply experimental design in the optimization of influencing parameters on the corrosion inhibition efficiency of Methyl Green (MG) dye using the weight loss (WL) technique. Corrosion inhibition of carbon steel (CS) in the presence of different concentrations of MG dye in 1 M HClO4 solution has been studied. Results showed that inhibition efficiency (IE) increased with increasing concentration of MG dye up to 1.0 × 10 −3 mol/L, and decreased with raising temperature. The free energy values calculated from the Langmuir adsorption isotherm for MG dye (-36.24 to -38.04 kJ/mol) suggested that MG dye molecules adsorbed onto CS surface via a physicochemical mechanism.

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“…Langmuir model is based on the hypothesis that each site of metal surface has adsorbed species (Equation 8) [13]:…”

Section: Adsorption Isothermmentioning

confidence: 99%

mentioning

confidence: 99%

Use of Experimental Designs to Evaluate the Influence of Methyl Green Dye as a Corrosion Inhibitor for Carbon Steel in Perchloric Acid

2021

MJCHEM

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“…Each sample was weighed by an electronic balance (±0.0001 g) and then placed in the acid solution (50 mL). The following equations were used to calculate the corrosion rate (CR) and the inhibition efficiencies (IE) [23][24][25].…”

Section: Materials and Sample Preparationsmentioning

confidence: 99%

Optimization of inhibition efficiencies process of polyvinylpyrrolidone using response surface methodology

et al. 2022

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Inhibition efficiencies (IE) process in polyvinylpyrrolidone (PVP) which is influenced by independent factors, concentration and size of PVP, temperature, time of immersion, and perchloric acid concentration was investigated in this paper. The relationship between factors and their responses is established by the concept of response surface methodology (RSM) explicitly through regression statistical analysis and probabilistic analysis is used in this work. The concept is a combination of mathematical and statistical techniques allowing the modeling and problems analysis by experimental design. In this study, the results based on statistical analysis showed that the quadratic models for the inhibition efficiencies (IE) were significant at the value of probability P < 0.0001 and the coefficient of multiple regressions R2=0.9997, for further validation of the model, R2Adj=0.9993 indicated a good model. The observed experimental values were in good agreement with predicted ones and the model washighly significant with Q2= 0.9884. The optimal conditions of inhibition efficiencies (IE) obtained are 104.301% for a concentration of 3.55×10−3 mol/L, temperature of 20.15°C, immersion time of 2h, size of PVP 58000 g/mol, and acid concentration of 0.5 mol/L.

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“…The electrophilicity index is another important parameter which shows the tendency of the molecule to accept electron(s). The charge transfer of 0.6 eV indicates that the PVP inhibitor is a strong electron donor [3]. Generally, if the fractions of electrons transferred are less than 3.6 eV, the inhibition efficiency increases by increasing the electron donating capacity on the metal surface [51].…”

Section: Quantum Chemical Calculationsmentioning

confidence: 99%

“…Generally speaking, a corrosion inhibitor is a compound that reduces or stops the rate of metal dissolution whenever introduced or added in small quantities to a corrosive environment by producing a preventive barrier film [3]. Moreover, a good corrosion inhibitor presents many characteristics such as high solubility, non-toxicity, biodegradability, stability, short-and long-term durability and low cost.…”

Section: Introductionmentioning

confidence: 99%

Polyvinylpyrrolidone as a Corrosion Inhibitor for Carbon Steel in a Perchloric Acid Solution: Effect of Structural Size

Benchadli¹,

Attar²,

Messaoudi³

et al. 2021

Hung. J. Ind. Chem.

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Polymers are materials composed of macromolecules characterized by duplicates of smaller molecules that are covalently bonded together to provide a set of properties. Corrosion inhibition by such compounds is usually attributed to their adsorption on the metal-solution interface. The inhibition effect of different sizes of polyvinylpyrrolidone (PVP) on the corrosion of carbon steel (C-steel) in solutions of perchloric acid was investigated. The inhibition efficiency increases as the size of the inhibitor and its concentration increases, but decreases as the temperature increases and can reach a value of 81.53% and 5.0x10^-3 mol L^-1(PVP: 58,000 g mol^-1) at 30°C. The most remarkable inhibition efficiency was confirmed by the presence of the film formed on the metal surface by scanning electron microscopy. The kinetic and thermodynamic parameters for the corrosion of C-steel and adsorption of the inhibitor were determined and discussed. The combination of PVP with potassium iodide produced a strong synergistic effect on the inhibition of C-steel corrosion leading to a significant improvement in the inhibition efficiency. Quantum chemical parameters were studied using density functional theory to determine the possible relationship between the inhibitor and its electronic properties.

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Experimental and Theoretical Studies of Eosin Y Dye as Corrosion Inhibitors for Carbon Steel in Perchloric Acid Solution

Cited by 23 publications

References 50 publications

Use of Experimental Designs to Evaluate the Influence of Methyl Green Dye as a Corrosion Inhibitor for Carbon Steel in Perchloric Acid

Use of Experimental Designs to Evaluate the Influence of Methyl Green Dye as a Corrosion Inhibitor for Carbon Steel in Perchloric Acid

Optimization of inhibition efficiencies process of polyvinylpyrrolidone using response surface methodology

Polyvinylpyrrolidone as a Corrosion Inhibitor for Carbon Steel in a Perchloric Acid Solution: Effect of Structural Size

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