Phenolic fraction of Ammi visnaga extract as environmentally friendly antioxidant and corrosion inhibitor for mild steel in acidic medium

被引：58

作者：

Aourabi, S. ^{[1
]}

Driouch, M. ^{[1
]}

Sfaira, M. ^{[1
]}

Mahjoubi, F. ^{[1
]}

Hammouti, B. ^{[2
]}

Verma, Chandrabhan ^{[3
]}

Ebenso, Eno E. ^{[4
]}

Guo, L. ^{[5
]}

机构：

[1] Univ Sidi Mohamed Ben Abdellah USMBA, Lab Engn Modeling & Syst Anal LIMAS, Fac Sci, POB 1796-30000, Fez Atlas, Morocco

[2] Mohammed 1st Univ, Fac Sci, Lab Appl Chem & Environm, POB 4808, Oujda, Morocco

[3] King Fahd Univ Petr & Minerals, Ctr Res Excellence Corros, Res Inst, Dhahran 31261, Saudi Arabia

[4] North West Univ, Mat Sci Innovat & Modelling MaSIM Res Focus Area, Fac Agr Sci & Technol, Mafikeng Campus, Mmabatho, South Africa

[5] Tongren Univ, Sch Mat & Chem Engn, Tongren 554300, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2021年 / 323卷

关键词：

Ammi visnaga; Antioxidant activity; catechin and quercetin; Acid corrosion; Inhibitors; Temkin and El-Awady adsorption isotherm models; 1 M HCL; BLACK PEPPER EXTRACT; CARBON-STEEL; LEAVES EXTRACT; PLANT-EXTRACTS; ESSENTIAL OIL; HIGH-STRENGTH; ADSORPTION; BEHAVIOR; IODIDE;

D O I：

10.1016/j.molliq.2020.114950

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present study aims to prepare a phenolic extract of Ammi visnaga from its areal part and qualitative measurement of flavonoids and tannins present in the extract using Folin Ciacalteu and Quettier-Deleu methods. Antioxidant activities of different fractions of the extract was measured using DPPH center dot, FRAP, beta-carotene and total antioxidant capacity techniques. The n-butanol and ethyl acetate fractions designated as F3 and F6, respectively. Corrosion inhibition effect of quercetin and catechin and F3 and F6 was studied for mild steel in 1 M HCl using electrochemical procedures. Electrochemical studies showed that quercetin and catechin standards showed antagonistic effect towards mild steel acidic corrosion. Among the tested species, the F6 and F3 fractions showed highest efficiencies of 93% and 88%, at 0.15 g L--(1) concentration, respectively. Potentiodynamic and electrochemical impedance spectroscopy (EIS) studies showed that tested species act as mixed-type corrosion inhibitors, respectively. Adsorption of catechin on metallic surface in acidic medium obeyed the Temkin and El-Awady models. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：13

共 88 条

[1] The effects of Aloe vera extract on corrosion and kinetics of corrosion process of zinc in HCl solution [J].