Gum Arabic-silver nanoparticles composite as a green anticorrosive formulation for steel corrosion in strong acid media

Moses M. Solomon; Husnu Gerengi; Saviour A. Umoren; Nsikak B. Essien; Uduak B. Essien; Ertugrul Kaya

doi:10.1016/j.carbpol.2017.10.051

Gum Arabic-silver nanoparticles composite as a green anticorrosive formulation for steel corrosion in strong acid media

Moses M. Solomon, Husnu Gerengi, Saviour A. Umoren, Nsikak B. Essien, Uduak B. Essien, Ertugrul Kaya

Research output: Journal Publication › Article › peer-review

110 Citations (Scopus)

Abstract

A green anticorrosive composite (GA-AgNPs) has been formulated for steel in 15% HCl and 15% H₂SO₄ media. Characterization of GA-AgNPs is achieved via FTIR, UV-vis, EDAX, and SEM. Gravimetric, electrochemical (EIS, EFM, DEIS, & TP), and surface assessment (SEM, EDAX, AFM, & XPS) techniques have been deployed in the anticorrosion studies. Results from all applied methods potray GA-AgNPs as effective anticorrosive agent. Inhibition is by adsorption mechanism and follows Langmuir isotherm. GA-AgNPs acts as mixed type inhibitor in 15% H₂SO₄ solution but as anodic type in 15% HCl solution. Results from surface techniques confirm adsorption of GA-AgNPs molecules on specimen surface. Oxides, hydroxides, carbonates, and sulphates (H₂SO₄ medium) or chlorides (HCl medium) are the corrosion products in the free corrodent according to XPS results. In the presence of composite, both ionic and neutral forms of GA-AgNPS are adsorbed. AgNPs are present on the surface in the form: Ag° Ag₂O, and AgO.

Original language	English
Pages (from-to)	43-55
Number of pages	13
Journal	Carbohydrate Polymers
Volume	181
DOIs	https://doi.org/10.1016/j.carbpol.2017.10.051
Publication status	Published - 1 Feb 2018
Externally published	Yes

Keywords

Acid corrosion
Adsorption
Green inhibitor
Inhibition
Nanocomposite
Natural polymer

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.carbpol.2017.10.051

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title = "Gum Arabic-silver nanoparticles composite as a green anticorrosive formulation for steel corrosion in strong acid media",

abstract = "A green anticorrosive composite (GA-AgNPs) has been formulated for steel in 15% HCl and 15% H2SO4 media. Characterization of GA-AgNPs is achieved via FTIR, UV-vis, EDAX, and SEM. Gravimetric, electrochemical (EIS, EFM, DEIS, & TP), and surface assessment (SEM, EDAX, AFM, & XPS) techniques have been deployed in the anticorrosion studies. Results from all applied methods potray GA-AgNPs as effective anticorrosive agent. Inhibition is by adsorption mechanism and follows Langmuir isotherm. GA-AgNPs acts as mixed type inhibitor in 15% H2SO4 solution but as anodic type in 15% HCl solution. Results from surface techniques confirm adsorption of GA-AgNPs molecules on specimen surface. Oxides, hydroxides, carbonates, and sulphates (H2SO4 medium) or chlorides (HCl medium) are the corrosion products in the free corrodent according to XPS results. In the presence of composite, both ionic and neutral forms of GA-AgNPS are adsorbed. AgNPs are present on the surface in the form: Ag° Ag2O, and AgO.",

keywords = "Acid corrosion, Adsorption, Green inhibitor, Inhibition, Nanocomposite, Natural polymer",

author = "Solomon, {Moses M.} and Husnu Gerengi and Umoren, {Saviour A.} and Essien, {Nsikak B.} and Essien, {Uduak B.} and Ertugrul Kaya",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

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doi = "10.1016/j.carbpol.2017.10.051",

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AU - Solomon, Moses M.

AU - Gerengi, Husnu

AU - Umoren, Saviour A.

AU - Essien, Nsikak B.

AU - Essien, Uduak B.

AU - Kaya, Ertugrul

PY - 2018/2/1

Y1 - 2018/2/1

N2 - A green anticorrosive composite (GA-AgNPs) has been formulated for steel in 15% HCl and 15% H2SO4 media. Characterization of GA-AgNPs is achieved via FTIR, UV-vis, EDAX, and SEM. Gravimetric, electrochemical (EIS, EFM, DEIS, & TP), and surface assessment (SEM, EDAX, AFM, & XPS) techniques have been deployed in the anticorrosion studies. Results from all applied methods potray GA-AgNPs as effective anticorrosive agent. Inhibition is by adsorption mechanism and follows Langmuir isotherm. GA-AgNPs acts as mixed type inhibitor in 15% H2SO4 solution but as anodic type in 15% HCl solution. Results from surface techniques confirm adsorption of GA-AgNPs molecules on specimen surface. Oxides, hydroxides, carbonates, and sulphates (H2SO4 medium) or chlorides (HCl medium) are the corrosion products in the free corrodent according to XPS results. In the presence of composite, both ionic and neutral forms of GA-AgNPS are adsorbed. AgNPs are present on the surface in the form: Ag° Ag2O, and AgO.

AB - A green anticorrosive composite (GA-AgNPs) has been formulated for steel in 15% HCl and 15% H2SO4 media. Characterization of GA-AgNPs is achieved via FTIR, UV-vis, EDAX, and SEM. Gravimetric, electrochemical (EIS, EFM, DEIS, & TP), and surface assessment (SEM, EDAX, AFM, & XPS) techniques have been deployed in the anticorrosion studies. Results from all applied methods potray GA-AgNPs as effective anticorrosive agent. Inhibition is by adsorption mechanism and follows Langmuir isotherm. GA-AgNPs acts as mixed type inhibitor in 15% H2SO4 solution but as anodic type in 15% HCl solution. Results from surface techniques confirm adsorption of GA-AgNPs molecules on specimen surface. Oxides, hydroxides, carbonates, and sulphates (H2SO4 medium) or chlorides (HCl medium) are the corrosion products in the free corrodent according to XPS results. In the presence of composite, both ionic and neutral forms of GA-AgNPS are adsorbed. AgNPs are present on the surface in the form: Ag° Ag2O, and AgO.

KW - Acid corrosion

KW - Adsorption

KW - Green inhibitor

KW - Inhibition

KW - Nanocomposite

KW - Natural polymer

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ER -

Gum Arabic-silver nanoparticles composite as a green anticorrosive formulation for steel corrosion in strong acid media

Abstract

Keywords

ASJC Scopus subject areas

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