Rhamnolipid as an eco-friendly corrosion inhibitor for microbiologically influenced corrosion

被引：35

作者：

Li, Zhong ^{[1
,2
]}

Yuan, Xinyi ^{[1
,2
]}

Sun, Mingyue ^{[1
,2
]}

Li, Zhengtao ^{[1
,2
]}

Zhang, Danni ^{[1
,2
]}

Lei, Yuhao ^{[1
,2
]}

Zhang, Mingxing ^{[1
,2
]}

Fan, Yongqiang ^{[1
,3
]}

Xu, Dake ^{[1
,2
]}

Wang, Fuhui ^{[1
,2
]}

机构：

[1] Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Inst Elect, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China

[3] Northeastern Univ, Coll Life & Hlth Sci, Shenyang 110819, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 204卷

基金：

中国国家自然科学基金;

关键词：

Rhamnolipid; Microbiologically influenced corrosion; Corrosion inhibitor; Biosurfactant; Carbon steel; PHYSICOCHEMICAL CHARACTERIZATION; PSEUDOMONAS-CHLORORAPHIS; GEMINI SURFACTANT; STAINLESS-STEEL; AMMONIUM-SALT; CHLORIDE-ION; CARBON-STEEL; BIOSURFACTANT; BIOFILM; NANOPARTICLES;

D O I：

10.1016/j.corsci.2022.110390

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The development of sustainable and non-toxic corrosion inhibitors attracts much attentions. Herein, the rhamnolipid (RH) produced by Pseudomonas aeruginosa was found to effectively inhibit the corrosion of X70 carbon steel in simulated seawater. Moreover, RH was verified to protect X70 carbon steel against the microbiologically influenced corrosion (MIC) caused by Bacillus licheniformis, a typical corrosive bacterium. The addition of 0.1% (m/v) RH reduced the corrosion current density by 68.4% in the presence of B. licheniformis compared with untreated condition. The growth of B. licheniformis was significantly inhibited with RH concentration higher than 125 mg/L. The antimicrobial and corrosion inhibition effects make RH suitable for MIC inhibition.

引用

页数：12

共 62 条

[1] Cotton fabric graft copolymerization using microwave plasma. I. Universal attenuated total reflectance-FTIR study [J].