Eksakta : Berkala Ilmiah Bidang MIPA
Vol. 23 No. 03 (2023): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)

Methanol Extract of Melastoma malabathricum Leaves as Eco-Friendly Corrosion Inhibitor for Mild Steel in Sulfuric Acid

Diah Riski Gusti (Department of Chemistry, Faculty of Sciences and Technology, Universitas Jambi, Jambi, Indonesia)
Intan Lestari (Department of Chemistry, Faculty of Sciences and Technology, Universitas Jambi, Jambi, Indonesia)
Faizar Farid (Department of Chemistry, Faculty of Sciences and Technology, Universitas Jambi, Jambi, Indonesia)
Abdi Wahyudi (Department of Chemistry, Faculty of Sciences and Technology, Universitas Jambi, Jambi, Indonesia)
Azril (Department of Biomedical Engineering, National Cheng Kung University, Tainan City, Taiwan)
Mohd Zaki Sukor (Chemical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Pasir Gudang, Johor Bahru, Malaysia)

Article Info

Publish Date
30 Sep 2023

Abstract

Methanol extract of Melastoma malabathricum (MEMML) contains secondary metabolites such as phenolics and flavonoids. These compounds have OH groups that can interact with Fe contained in steel and form a thin layer for corrosion inhibition on mild steel. Inhibition of mild steel corrosion using MEMML leaves in sulfuric acid solution was carried out using weight loss and potentiodynamic polarization methods. The results showed that the mild steel corrosion rate decreased and inhibition efficiency increased with the addition of MEMML. FTIR and SEM analysis showed the interaction between mild steel with MEMML forming a layer on the surface of the steel so that it inhibits corrosion. The inhibition efficiency has increased with the length of immersion time and concentration of MML methanol extract. The highest inhibition efficiency, 98.86%, was obtained at 72 hours of immersion time and 10 g / L MEMML.

Copyrights © 2023




Citation Download
RIS
EndNote, Reference Manager, ProCite
BibTex
Latex, Jabref
Original Source
Download Original
Google Scholar
Check in Google Scholar
Journal Info
Eksakta : Berkala Ilmiah Bidang MIPA
Website

Abbrev

eksakta

Publisher

Universitas Negeri Padang

Subject

Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering

Description

Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) is an open access journal and peer-reviewed that publishes either original article or reviews. The journal is dedicated towards dissemination of knowledge related to the advancement in scientific research. The prestigious interdisciplinary ...