{"title":"Computational and Experimental Study of the Inhibition Effects of Purple Sweet Potato Leaves Extract on Mild Steel Corrosion in 1M H2SO4","authors":"Udowo Vm, Uwah Ie, Daniel Fe, F. Abeng, S. Ivara","doi":"10.4172/2161-0398.1000253","DOIUrl":null,"url":null,"abstract":"The alkaloid and non-alkaloid fractions of purple sweet potato (Ipomoea batatas) written as AEIB and NEIB respectively were used as inhibitors in the corrosion reaction of mild steel in 1.0 M H2SO4 solutions. The corrosion rate decreased with increase in the concentration of the AEIB and NEIB as evidenced in the experimental results obtained from the gravimetric and gasometric techniques. This proved that the AEIB and NEIB are effective inhibitors of mild steel corrosion. Also, the experimentally obtained data fitted well into the Temkin isotherm while the computed thermodynamic parameter values showed that the inhibitors effectively reduced the rate of metal dissolution by becoming physically adsorbed on the mild steel surface.","PeriodicalId":94103,"journal":{"name":"Journal of physical chemistry & biophysics","volume":"39 1","pages":"1-6"},"PeriodicalIF":0.0000,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of physical chemistry & biophysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4172/2161-0398.1000253","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The alkaloid and non-alkaloid fractions of purple sweet potato (Ipomoea batatas) written as AEIB and NEIB respectively were used as inhibitors in the corrosion reaction of mild steel in 1.0 M H2SO4 solutions. The corrosion rate decreased with increase in the concentration of the AEIB and NEIB as evidenced in the experimental results obtained from the gravimetric and gasometric techniques. This proved that the AEIB and NEIB are effective inhibitors of mild steel corrosion. Also, the experimentally obtained data fitted well into the Temkin isotherm while the computed thermodynamic parameter values showed that the inhibitors effectively reduced the rate of metal dissolution by becoming physically adsorbed on the mild steel surface.
用紫甘薯(Ipomoea batatas)的生物碱和非生物碱组分分别记为AEIB和NEIB作为缓蚀剂,在1.0 M H2SO4溶液中对低碳钢进行腐蚀反应。重量法和气相法的实验结果表明,随着AEIB和NEIB浓度的增加,腐蚀速率降低。这证明了AEIB和NEIB是低碳钢腐蚀的有效缓蚀剂。实验得到的数据符合Temkin等温线,而计算的热力学参数值表明,缓蚀剂通过物理吸附在低碳钢表面,有效地降低了金属的溶解速度。