Corrosion Inhibition of Mild Steel in Sulphuric Acid Environment Using Millet Starch and Potassium Iodide
S. C. Nwanonenyi, I. C. Madufor, P. C. Uzoma, I. C. Chukwujike
International Research Journal of Pure and Applied Chemistry · pp. 1–15 · Published 26 Jul 2016
10.9734/IRJPAC/2016/27881Abstract
Millet starch (MS) was extracted from millet grains and modified using a physical method (pre-gelatinization). The corrosion inhibition effectiveness of millet starch on mild steel corrosion in 0.5 M H2SO4 solution was investigated using weight loss measurement, potentiodynamic polarization and chemical quantum methods. The results obtained show that pure millet starch and its combination with potassium iodide effectively reduced the corrosion of mild steel in 0.5 M H2SO4 solution with an inhibition efficiency of 87.14% and 94.03% respectively.The increase in inhibition on addition of potassium iodide showed synergistic effect. In addition, millet starch was found to function essentially as a mixed-type inhibitor by adsorption on the mild steel surface according to the polarization curves. The mode of inhibition adsorption was best modeled using Langmuir adsorption isotherm. The calculated values of ∆Gads, Ea and ∆Hads suggested physisorption mechanism. Theoretical quantum chemical calculations were performed to confirm the ability of starch to adsorb onto mild steel surface.
Cited by 23
Eborukan I. Kehinde, Ojo S. I. Fayomi, Joshua O. Atiba · Journal of Bio- and Tribo-Corrosion · 2025
· Green Corrosion Inhibition · 2022
F. O. Edoziuno, A. A. Adediran, B. U. Odoni · The Scientific World Journal · 2020
Dheeraj Singh Chauhan, Ahmad A. Sorour, Viswanathan S. Saji · Sustainable Chemistry and Pharmacy · 2023
Ifeanyi John Obibuenyi, Uche Luvia Ezeamaku, Chigozie Onyechere · 2025
Nnamdi Chibuike Iheaturu, Stanley Udochukwu Ofoegbu, Bibiana Chimezie Aharanwa · Journal of Engineering and Applied Science · 2024
S. C. Nwanonenyi, I. O. Arukalam, H. C. Obasi · Journal of Bio- and Tribo-Corrosion · 2017
Li Huang, Wei-Qiang Chen, Shan-Shan Wang · Environmental Chemistry Letters · 2022
Simeon C. Nwanonenyi, Okoro Ogbobe, Emeka Emmanuel Oguzie · International Journal of Engineering and Technologies · 2017
Chandrabhan Verma, Dheeraj Singh Chauhan, Ruby Aslam · Green Chemistry · 2024
Showing 20 of 23 known citations — external sources report more than can currently be individually listed.
Related research
- Oxidation is Key for Black Carbon Surface Functionality and Nutrient Retention in Amazon Anthrosols — shares topic coverage
- A Review on Current Trends in Heavy Metal Removal from Water between 2000-2021 — shares topic coverage
- Kinetics and Mechanism of the Adsorption of Methylene Blue from Aqueous Solution onto Turkish Green Clay — shares topic coverage
- Equilibrium Isotherm Studies on the Adsorption of Malachite Green and Lead Ion from Aqueous Solution Using Locally Activated Ugwaka Clay (Black Clay) — shares topic coverage
- Studies on Adsorptive Behavior of Cd2+ on Graphene Oxide: Alternative Novel Approach — shares topic coverage
Article metrics
Real usage data collected on this platform.
14
Page views
0
PDF downloads
2
Outbound clicks
23
Citations
Views over time
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
Traffic sources
Referring site, by host.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.