Tulsi and green tea extracts as efficient green corrosion inhibitor for the corrosion of aluminum alloy in acidic medium

Abstract

Aluminum is utilized in many applications and it is constantly corroding and losing strength. Corrosion impacts every area of the economy and creates substantial issues. Most approaches for reducing corrosion are environmentally harmful. Green tea and Tulsi extract are two potential choices for use as green corrosion inhibitors in aluminum alloys. This study set out to examine whether or not extracts from green tea and Tulsi might inhibit the corrosion of aluminum alloy 1100 in an10% H2SO4 solution. When it refers to weight reduction, green tea's maximum efficacy of inhibition is 71.43%, whereas tulsi extract is 85.71%. FTIR spectroscopy demonstrated that an adsorbent protective layer formed on the surface of the aluminum after it was immersed in an inhibited solution. The SEM morphology reveals that the presence of a green inhibitor reduces corrosion on the surface of Al alloy 1100. EDS analysis reveals that the chemical particles form a coating over the Al alloy surfaces. Tulsi extracts have been shown to be more efficient for inhibiting Al alloy 1100 in10% H2SO4 Solution than green tea extracts.