Development of ecofriendly high performance anti-corrosive chitosan nanocomposite material for mild steel corrosion in acid medium

The present study discusses preparation, characterisation and corrosion inhibition of mild steel exposed to acidic medium (1M HCl using) nanocomposite based chitosan (CH) doped with zinc oxide nanoparticles ZnO NPs. Preparation of CH-ZnONPs was carried out via facile, in situ reduction, coast effect...

Full description

Saved in:
Bibliographic Details
Published in:Biomass conversion and biorefinery 2023-08, Vol.13 (13), p.12235-12248
Main Authors: Hasanin, Mohamed, Al Kiey, Sherief A.
Format: Article
Language:English
Subjects:
Adsorption
Biotechnology
Chitosan
Corrosion
Corrosion inhibitors
Corrosion mechanisms
Corrosion potential
Efficiency
Electrode polarization
Energy
Investigations
Low carbon steels
Nanocomposites
Nanoparticles
Nyquist plots
Original Article
Renewable and Green Energy
Stability analysis
Surface chemistry
Surface roughness
Zinc oxide
Zinc oxides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present study discusses preparation, characterisation and corrosion inhibition of mild steel exposed to acidic medium (1M HCl using) nanocomposite based chitosan (CH) doped with zinc oxide nanoparticles ZnO NPs. Preparation of CH-ZnONPs was carried out via facile, in situ reduction, coast effective and green method. The characterisations of the synthesised inhibitor CH-ZnONPs were evaluated using FTIR, XRD, SEM-EDX, TEM, TGA, DLS and N 2 adsorption-desorption as well as the antimicrobial activity. Results showed that CH-ZnONPs was prepared in nanoscale (26–136 nm) with surface area more than neat CH by about ten folding. Moreover, The DLS measurement results were configured high stability of the CH-ZnONPs. CH-ZnONPs was assessed as a potential corrosion inhibitor for mild steel in acid solutions 1M HCl. Experimental evaluations were carried out at various concentrations to investigate the inhibition efficiency and adsorption behaviour of CH-ZnO NPs. Electrochemical and surface investigations were used to investigate the efficiency of in inhibiting corrosion (SEM-EDX and surface roughness). The results indicated that increasing the concentration of the green corrosion inhibitor CH-ZnO NPs increased the efficiency of the used inhibitor, which reached 93.95% in the presence of 100 ppm. Furthermore, the CH-ZnO NPs functioned as a mixed-type corrosion inhibitor, according to Tafel extrapolated polarisation measurements. The Nyquist plot of impedance is mostly represented by a depressed capacitive loop with various concentrations of inhibitor. The CH-ZnONPs inhibit metallic corrosion by means of an adsorption mechanism adopting the isothermal model of Langmuir adsorption. Surface morphology examinations, in addition to electrochemical tests, result in a significant evidence for the existence of an inhibitor molecules adsorbed across the mild steel surface.
ISSN:2190-6815
2190-6823
DOI:10.1007/s13399-021-02059-8