Enhanced epoxy/magnetized and functionalized 3-aminopropyltrimethoxysilane nanosilica from rice husk as anti-corrosive coating for ASTM A36 steel in 1M HCl solution: Performance evaluation, characterization and isotherm studies

Key Points

• The aim is to assess the performance of a novel anti-corrosive coating derived from rice husk for protecting ASTM A36 steel in acidic environments.
• Evaluated the corrosion performance of EP@MNS@APTES in 1 M HCl solution.
• Characterized the coating using adsorption isotherm studies, focusing on the Langmuir model.
• Measured inhibition efficiency and thermodynamic properties of the coating.
• Achieved 98.71% inhibition efficiency at the optimum point.
• Experimental data conformed excellently to the Langmuir isotherm model.
• Coating adsorption was found to be spontaneous, thermodynamically favorable, and endothermic.