| Literature DB >> 32942068 |
Bochuan Tan1, Bin Xiang2, Shengtao Zhang3, Yujie Qiang4, Lihui Xu5, Shijin Chen6, Jiahong He7.
Abstract
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.Entities:
Keywords: Copper; Corrosion inhibitor; Langmuir mono-layer adsorption; Papaya leaves extract; XPS
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Year: 2020 PMID： 32942068 DOI： 10.1016/j.jcis.2020.08.093
Source DB: PubMed Journal: J Colloid Interface Sci ISSN： 0021-9797 Impact factor: 8.128