Nepeta cataria L. leaf extracts as eco-conscious corrosion inhibitor for copper in H2SO4 medium

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-02-11 DOI:10.1016/j.colsurfa.2025.136399

Bochuan Tan , Haiqin Ren , Chao Yin , Xin Li , Xianghong Li , Rong Wang , Lei Guo , Yingchao Zhang , Mohammad K. Al-Sadoon

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Abstract

In this paper, the leaves of Nepeta cataria L. were extracted by repeated freeze-thaw-ultrasound assisted extraction method and its Nepeta cataria L. leaf extracts are used as a corrosion protection for copper in 0.5 M H₂SO₄ medium. The results revealed that the Nepeta cataria L. leaf extracts are a mixed adsorption type corrosion inhibitor mainly based on physical adsorption, and the efficiency of the corrosion inhibitor decrease from 91.24 % to 90.05 % when the temperature was varied from 25 °C to 35 °C at an it’s concentration of 800 mg/L, the electrochemical results were qualitatively demonstrated from the morphological analysis of copper leaves. Furthermore, XPS results showed that the active molecules in the leaf extracts of Nepeta cataria L. were adsorbed on copper in a Langmuir monolayer. Quantum chemical calculations and molecular dynamics simulations were carried out for the main components of the Nepeta cataria L. leaf extracts.

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.