Exploring the Efficacy of Polysaccharides as Green Corrosion Inhibitors: A Comprehensive Review

Abstract

Corrosion threatens materials in diverse industries, necessitating sustainable corrosion inhibitors. Polysaccharides, abundant natural polymers, emerge as eco‐friendly corrosion inhibitors. This review explores polysaccharides' efficacy, mechanisms, and applications. It introduces the significance of corrosion and the vital role of inhibitors, positioning polysaccharides as promising green solutions. The exploration covers polysaccharide diversity, sources, and eco‐friendly attributes. Corrosion mechanisms are detailed, setting the stage for understanding inhibition strategies. Polysaccharides, with unique adsorption and film‐forming properties, are effective inhibitors, elucidated through electrochemical studies. Influential factors like pH, temperature, and concentration effects, along with practical applicability considerations, are examined. Real‐world implementations across industries underscore polysaccharides' versatility, often surpassing traditional inhibitors. Despite challenges, this review outlines their promising role, addressing concerns and proposing future directions. Polysaccharides emerge as eco‐friendly alternatives, illuminating inhibitive properties, mechanisms, and practical applications, guiding continued research for sustainable corrosion prevention.

Thiol–ene Click Chemistry Synthesis of L-Cysteine-Grafted Graphene Oxide As a New Corrosion Inhibitor for Q235 Steel in Acidic Environment

“…Biological molecules with organic structures containing many heteroatom elements are reported with corrosion inhibition performances. − However, most biopolymers showed a moderate inhibition efficiency, and the dosage of these biopolymers was much high and the concentration was even as high as 2000 mg L –1 . Environment-friendly and nontoxic compounds like 4-aminobenzoic acid, sodium octanoate, and cyclodextrin were covalently attached on the GO to form environmental-friendly functionalized GO corrosion inhibitors. − For example, 4-aminobenzoic acid-functionalized GO have been prepared, and the IE value for Q235 steel in the acidic medium (1.0 M) was close to 98% .…”