Corrosion Inhibition Potential of Ethanol Extract of Bryophyllum pinnatum Leaves for Zinc in Acidic Medium
Journal Title: Edelweiss Applied Science and Technology - Year 2018, Vol 2, Issue 1
Abstract
The inhibitive and adsorption properties of ethanol extract of Bryophyllum pinnatum leaves were studied using weight loss, potentiodynamic polarization, Scanning Electron Microscopy (SEM) and Fourier transformed infra-red spectroscopy (FTIR) methods of monitoring corrosion. The results obtained, indicated that ethanol extracts of Bryophyllum pinnatum leaves is a good adsorption inhibitor for the corrosion of zinc in sulphuric acid solutions. The adsorption of the inhibitor on zinc surface was found to be spontaneous and supported the Langmuir adsorption model. From the calculated values of free energy of adsorption, the activation energy and the variation of inhibition efficiency with temperature, a physical adsorption mechanism has been proposed for the adsorption of ethanol extract of Bryophyllum pinnatum leaves on zinc surface. Results from potentiodynamic polarization study indicated that Bryophyllum pinnatum is a mixed-type corrosion inhibitor. Analysis of spectra obtained from Fourier transformed infra-red spectrophotometer (FTIR) revealed that some functional groups presence in the spectra of the inhibitors were missing in the spectra of the corrosion products which also indicated that there is an interaction between zinc and the inhibitor.
Authors and Affiliations
Alhaji Modu Kolo
Challenges and Prospects of Community Based
The main objective of this study was to assess the challenges and prospects of community-based ecotourism in the Maichew cluster, a case of Ofla woreda. Community based eco-tourism has become rapidly the most fundamental...
Statistical Comparison to Determine First Line Regimen of Two Anti-Malarials for Uncomplicated Plasmodium Falciparum Malaria among Children Under 5 Years
Comparison of regimen efficacy in clinical medicine has been utilized to improve the effect of drugs against disease The pairs alternative t-test method approach is used in this experimental study to derive efficacy esti...
Effective and Safe Fibrinolysis Requires both Plasminogen Activators in a Sequential Combination
A clot that obstructs blood flow triggers the onset of most heart attacks and 85% of strokes, the leading causes of death and disability worldwide. Reestablishing blood flow rapidly limits damage to the heart or brain, s...
Optimizing Food and Beverage Product Development: From the Past to the 21st Century and Beyond
Psychophysics is the oldest branch of experimental psychology, devoted to understanding the relation between physical stimuli (e.g., ingredients, processes) and subjective response. When applied to developing food produc...
Effect of Mentoring on Military Personnel Retention
Retention of human capital is an asset to any organization and as a result, mentoring and retention has become an issue of importance for any organization. This study, therefore, analyzed the effect of mentoring on milit...