Inhibitive Action and Adsorption Characteristics of Alternanthera bettzickiana Extracts on the Corrosion of Mild Steel in Acidic Media
A. I. Obike, C. L. Ikenga, K. J. Uwakwe, N. O. Nwoke
International Research Journal of Pure and Applied Chemistry · pp. 1–11 · Published 22 Dec 2017
10.9734/IRJPAC/2017/38165Abstract
The inhibitive action of leaves, stem and root extracts of Alternanthera bettzickiana on mild steel corrosion in 5 M H2SO4 solutions was studied using gravimetric technique in the temperature range 30°C to 60°C. Maximum inhibition efficiency (and surface coverage) was obtained at an optimum concentration. However, increase in temperature decreased the inhibition efficiency at the temperature range studied. The experimental data complied with the Langmuir, Freundlich and Temkin adsorption isotherm and the value and sign of the Gibb’s free energy of adsorption obtained suggested that inhibitor molecules have been spontaneously adsorbed onto the mild steel surface through a physical adsorption mechanism. Thermodynamic parameters revealed that the adsorption process is spontaneous.
Cited by 1
Maria Manan, Uzma Saleem, Muhammad Sajid Hamid Akash · ACS Omega · 2020
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.
0
Page views
0
PDF downloads
0
Outbound clicks
1
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
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.