{"title":"Sargassum latifolium Extract as a Safe Corrosion Inhibitor for Aluminum in 1 M Hydrochloric Acid Medium: Surface Analysis and Biological Effect","authors":"A. S. Fouda, A. H. Tilp, N. M. Elbahrawi","doi":"10.3103/S1068375521040025","DOIUrl":null,"url":null,"abstract":"<p><i>Sargassum latifolium</i> extract was used as new extract for the protection of Al dissolution using chemical and electrochemical methods. It was extracted, tested, and its high inhibition quality with addition of 1 × 10<sup>–2</sup> M KI at 298 K for 300 ppm in 1M hydrochloric acid was recorded. The adsorption mechanism agreed with the Temkin isotherm from the weight loss procedure. From Tafel extrapolations showed that the used extract acts as mixed inhibitor. The thermodynamic parameters were organized and clarified. The attenuated total reflectance-Fourier transform infrared spectroscopy and atomic forced microscopy were performed for the Al surface analyses and a good decrease in the surface roughness was reached. The used extract has also demonstrated a satisfying biological activity against bacterial growth.</p>","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"57 4","pages":"473 - 486"},"PeriodicalIF":1.1000,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Engineering and Applied Electrochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068375521040025","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
Sargassum latifolium extract was used as new extract for the protection of Al dissolution using chemical and electrochemical methods. It was extracted, tested, and its high inhibition quality with addition of 1 × 10–2 M KI at 298 K for 300 ppm in 1M hydrochloric acid was recorded. The adsorption mechanism agreed with the Temkin isotherm from the weight loss procedure. From Tafel extrapolations showed that the used extract acts as mixed inhibitor. The thermodynamic parameters were organized and clarified. The attenuated total reflectance-Fourier transform infrared spectroscopy and atomic forced microscopy were performed for the Al surface analyses and a good decrease in the surface roughness was reached. The used extract has also demonstrated a satisfying biological activity against bacterial growth.
以马尾草提取物为研究对象，采用化学和电化学方法研究其对铝溶出的保护作用。对其进行了提取和测试，在1M盐酸中添加1 × 10-2 M KI, 298 K, 300 ppm，具有良好的抑制效果。吸附机理符合失重过程的Temkin等温线。从Tafel推断表明，所使用的提取物具有混合抑制剂的作用。对热力学参数进行了整理和澄清。利用衰减全反射-傅里叶变换红外光谱和原子强制显微镜对铝表面进行了分析，发现表面粗糙度有较好的降低。所使用的提取物也显示出令人满意的生物活性，以防止细菌生长。
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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