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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

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Title Evaluation of Punica granatum extract as an environmentally safe corrosion inhibitor for carbon steel in a solution of 1 M sulfuric acid
 
Creator Elnagar, Mohamed E
Elabbasy, Hanaa M
Fouda, Abd El-Aziz S
 
Subject Adsorption
C-steel
Punica granatum extract
Sulfuric acid
Synergistic effect
Temkin isotherm
 
Description 342-351
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 weightloss
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 (ΔGo
ads = 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.
 
Date 2023-05-04T11:28:53Z
2023-05-04T11:28:53Z
2023-05
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/61848
https://doi.org/10.56042/ijct.v30i3.70544
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.30(3) [May 2023]