Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-09-06 , DOI: 10.1016/j.jcis.2020.08.093 Bochuan Tan 1 , Bin Xiang 1 , Shengtao Zhang 1 , Yujie Qiang 2 , Lihui Xu 3 , Shijin Chen 4 , Jiahong He 5
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The papaya leaves were extracted via ultra-pure water. The obtained papaya leaves extract (PLE) was used as the eco-friendly inhibitor for Cu in the H2SO4 corrosion medium. The experimental results showed that PLE was a mixed-type inhibitor and exhibited excellent anti-corrosion nature over a certain temperature range. Morphological analysis test results at different temperatures strongly proved the anti-corrosion nature of PLE. The XPS test results found that an adsorption film of Cu-S bond and Cu-N bond was formed on the Cu surface. This barrier film conformed to Langmuir mono-layer adsorption. Corrosion kinetics and thermodynamic parameters were calculated and discussed.
中文翻译：
木瓜叶提取物是一种新型的环保型H2SO4介质中的Cu腐蚀抑制剂。
通过超纯水提取木瓜叶。将获得的番木瓜叶提取物（PLE）用作H 2 SO 4腐蚀介质中Cu的生态友好抑制剂。实验结果表明，PLE是一种混合型缓蚀剂，在一定温度范围内具有优异的防腐性能。在不同温度下的形态分析测试结果有力地证明了PLE的防腐特性。XPS测试结果发现在Cu表面上形成了Cu-S键和Cu-N键的吸附膜。该阻挡膜符合Langmuir单层吸附。计算并讨论了腐蚀动力学和热力学参数。
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