Falcaria vulgaris leaves extract as an eco-friendly corrosion inhibitor for mild steel in hydrochloric acid media

Abstract

Undoubtedly, metal corrosion is one of the most challenging problems faced by industries. Introducing corrosion inhibitors is a reasonable approach to protecting the metal surface. Due to environmental concerns and the toxicity of industrial organic corrosion inhibitors, researchers are continually exploring acceptable replacements. The current study focused on the application of Falcaria Vulgaris (FV) leaves extract to mitigate mild steel (MS) corrosion in a 1 M HCl environment. The polarization findings demonstrated that the corrosion current density decreased from 264.0 µA/cm2 (for the sample submerged in the blank solution) to 20.4 µA/cm2 when the optimal concentration of 800 ppm of FV leaves extract was added to the acid solution. Electrochemical impedance spectroscopy (EIS) analysis revealed an inhibition efficiency of 91.3% at this concentration after 6 h of immersion. It was determined by analyzing several adsorption isotherms that this corrosion inhibitor obeys the Frumkin isotherm. AFM, FE-SEM, and GIXRD surface analyses also supported the findings that adding FV leaves extract can reduce metal damage by adsorption on the metal surface.

Principles and theories of green chemistry for corrosion science and engineering: design and application

“…(v) Renewable resources: Utilizing renewable resources lessens the reliance on finite resources and supports sustainable practices. Examples of these materials are plant extracts, 13,648,649 natural polymers, 15,650,651 and waste byproducts. 178,652,653 (vi) Integration into existing processes: Green corrosion inhibitors must be easily incorporated into current industrial processes without requiring substantial changes.…”

“…(v) Renewable resources : Utilizing renewable resources lessens the reliance on finite resources and supports sustainable practices. Examples of these materials are plant extracts, 13,648,649 natural polymers, 15,650,651 and waste byproducts. 178,652,653…”

Analyzing the corrosion and tribocorrosion performances of monolayer TiO2 and bilayer TiO2-SiO2 coatings at different SBF temperatures

“…However, the use of these compounds is not preferred due to both the damage they cause to the environment and their carcinogenicity [5]. Due to this, efforts conducted in recent years to improve the corrosion resistance of metals and alloys have concentrated on developing an affordable and eco-friendly surface coating [6][7][8][9]. Cp-Ti material is preferred, particularly in the biomedical industry, due to its low specific gravity, high load-bearing capacity, and biocompatible structures [10].…”

Unveiling the multifaceted incorporation of Musa acuminata peduncle juice as a bio-corrosion inhibitor of mild steel in seawater-simulated solution

“…In the marine environment and processing industries, inhibitors have always been considered the rst line of defense against corrosion. [3][4][5] However, scientists prioritise inhibitor types derived from natural or organic sources. This substance was selected due to its great availability, low toxicity, and ease of acquisition as a result of its plentiful natural availability.…”