The Use of Starch Silver Nanoparticles for the Inhibition of Mild Steel Corrosion Using Weight Loss Technique

Paul E. D., Egbuniwe A. F., Ekwumemgbor P. A.

Abstract


In this research, the corrosion of mild steel was studied in acidic media and the inhibitory effect of starch silver-nanoparticles (AgNPs) was evaluated. Synthesized starch AgNPs was used to explore the reticence of mild steel in acidic medium. The inhibition efficiency showed a maximum efficiency of 93.168% at 30oC and a minimum efficiency of 82.806% at 70oC.  This supports the claim that starch nanoparticles show promising inhibitory properties. Also, it was observed that the corrosion rate increased as temperature increased, with maximum and minimum corrosion rates of 0.788 at 70oC and 0.022 at 30oC respectively, which is in contrast to the %IE which decreased with increase in temperature. The experimental values do support the claims that starch AgNPs is a good inhibitor for the corrosion of mild steel.


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