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Anticorrosive properties of a green and sustainable inhibitor from leaves extract of Cannabis sativa plant: Experimental and theoretical approach
Colloids and Surfaces A: Physicochemical and Engineering Aspects ( IF 4.9 ) Pub Date : 2021-01-24 , DOI: 10.1016/j.colsurfa.2021.126211
R. Haldhar , D. Prasad , N. Mandal , F. Benhiba , I. Bahadur , O. Dagdag

The leaves extract of the Cannabis sativaplant was used for the corrosion resistance of low carbon steel (LCS) in the acidic medium (0.5 M sulfuric acid) utilizing the weight-loss method, Tafel and EIS. The state of mixed inhibitor adsorption on the LCS surface is shown by potentiodynamic polarization. C. sativaachieved anextraordinary inhibition efficiency of 97.31 % at 200 mg/L of inhibitor concentration. SEM and AFM were used to know about the thin layer which was formed on the surface of LCS for its protection from corrosion and the adsorption of inhibitor were shown by UV–vis. spectroscopic technique. FT-IR technique confirmed the existence of functional groups and the heteroatoms exhibit in the inhibitor. Adsorbanceby the inhibitory molecules on the LCS surface followed the Langmuir adsorption isotherm. Hypothetical investigations (computational) showed a very valuable report. All acquired outcomes ensure that C. sativaleaves extract can procedure an effectualpreventing layer and restrict the corrosion procedure. The results of the molecular dynamics (MD) simulations agree with the appointed inhibition efficiencies of the experimentally.



中文翻译:

一种来自大麻植物叶片提取物的绿色可持续抑制剂的防腐性能:实验和理论方法

利用减肥方法Tafel和EIS ,将大麻植物的叶子提取物用于酸性介质(0.5 M硫酸)中低碳钢(LCS)的耐腐蚀性。电位抑制极化显示了混合抑制剂在LCS表面的吸附状态。苜蓿在抑制剂浓度为200 mg / L时达到了97.31%的异常抑制效率。SEM和AFM用来了解在LCS表面形成的薄层,以防止腐蚀,而UV-vis显示出抑制剂的吸附。光谱技术。FT-IR技术证实了抑制剂中存在官能团和杂原子。LCS表面上抑制分子的吸附遵循Langmuir吸附等温线。假设调查(计算性)显示了非常有价值的报告。所有获得的结果均确保了苜蓿树叶提取物可以形成有效的防护层并限制腐蚀过程。分子动力学(MD)模拟的结果与实验中指定的抑制效率相符。

更新日期:2021-02-01
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