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Evaluation of Punica granatum Extract as an Environmentally Safe Corrosion Inhibitor for Carbon Steel in a Solution of 1 M Sulfuric Acid


Affiliations
1 PPG protective and marine coatings PMC, Egypt
2 Misr Higher Institute for Engineering and Technology, Mansoura, Egypt
3 Department Chemistry, Faculty of Science, Mansoura University, Mansoura-35516, Egypt
 

In order to create an eco-friendly corrosion inhibitor Punica granatum extract (PG) was employed as the primary component for use in H2SO4 pickling procedures. The inhibition behaviour of C-steel in H2SO4 has been studied using weight-loss tests, polarization curves, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS).The outcomes demonstrate the extract's effective inhibition in 1 M H2SO4. Both an increase in concentration and temperature boosted the effectiveness of the inhibition. With the greater concentration of PG (300 ppm) and the higher applied temperature (45°C), the inhibition effectiveness reached 91.7%. Nevertheless, the inhibitory efficacy increased synergistically with the addition of potassium iodide, increasing from 81.5% to 95.0% at 25°C using the weight-loss technique. Adsorption on the C-steel caused the inhibitory effect, and this adsorption mechanism was compatible with the Temkin isotherm. According to the free energy of adsorption (ΔG0ads = 39.5 kJ/mol.), the PG extract adheres chemically to the surface of the C-steel. The efficient inhibitor Punica granatum (PG) extract may prevent corrosion of C-steel in H2SO4 solution. The extracts from Punica granatum (PG) are a commonly used green inhibitor that may be used to pickle metals.

Keywords

Adsorption, C-Steel, Punica granatum Extract, Sulfuric Acid, Synergistic Effect, Temkin Isotherm.
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  • Evaluation of Punica granatum Extract as an Environmentally Safe Corrosion Inhibitor for Carbon Steel in a Solution of 1 M Sulfuric Acid

Abstract Views: 120  |  PDF Views: 83

Authors

Mohamed E Elnagar
PPG protective and marine coatings PMC, Egypt
Hanaa M Elabbasy
Misr Higher Institute for Engineering and Technology, Mansoura, Egypt
Abd El-Aziz S Fouda
Department Chemistry, Faculty of Science, Mansoura University, Mansoura-35516, Egypt

Abstract


In order to create an eco-friendly corrosion inhibitor Punica granatum extract (PG) was employed as the primary component for use in H2SO4 pickling procedures. The inhibition behaviour of C-steel in H2SO4 has been studied using weight-loss tests, polarization curves, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS).The outcomes demonstrate the extract's effective inhibition in 1 M H2SO4. Both an increase in concentration and temperature boosted the effectiveness of the inhibition. With the greater concentration of PG (300 ppm) and the higher applied temperature (45°C), the inhibition effectiveness reached 91.7%. Nevertheless, the inhibitory efficacy increased synergistically with the addition of potassium iodide, increasing from 81.5% to 95.0% at 25°C using the weight-loss technique. Adsorption on the C-steel caused the inhibitory effect, and this adsorption mechanism was compatible with the Temkin isotherm. According to the free energy of adsorption (ΔG0ads = 39.5 kJ/mol.), the PG extract adheres chemically to the surface of the C-steel. The efficient inhibitor Punica granatum (PG) extract may prevent corrosion of C-steel in H2SO4 solution. The extracts from Punica granatum (PG) are a commonly used green inhibitor that may be used to pickle metals.

Keywords


Adsorption, C-Steel, Punica granatum Extract, Sulfuric Acid, Synergistic Effect, Temkin Isotherm.

References