Efficiency of Gemini surfactant containing semi-rigid spacer as microbial corrosion inhibitor for carbon steel in simulated seawater

被引：43
作者：
Zhu, Hailin [1 ]
Li, Xiaofen [1 ]
Lu, Xiaomeng [1 ]
Wang, Junxia [1 ]
Hu, Zhiyong [1 ]
Ma, Xuemei [1 ]
机构：
[1] North Univ China, Sch Chem Engn & Technol, Taiyuan 030051, Peoples R China
来源：
BIOELECTROCHEMISTRY | 2021年 / 140卷
基金：
中国国家自然科学基金;
关键词：
Microbiological corrosion; Biocorrosion inhibitor; Carbon steel; Simulated seawater; Gemini surfactant containing semi-rigid spacer; MICROBIOLOGICALLY INFLUENCED CORROSION; SULFATE-REDUCING BACTERIA; QUATERNARY AMMONIUM-SALTS; ANTIBACTERIAL ACTIVITY; CATIONIC SURFACTANTS; MILD-STEEL; BIOCIDE; WATER; DERIVATIVES; MECHANISM;
D O I：
10.1016/j.bioelechem.2021.107809
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
SRB is one of the main bacteria causing marine microbial corrosion. In order to reduce the loss of micro-bial corrosion, a Gemini surfactant (12-B-12) containing semi-rigid spacer was used to investigate the anti-bacterial and anti-corrosion performances of carbon steel in simulated seawater by weight-loss test, electrochemical method and surface morphology analysis. The results showed that the inhibition effi-ciency of 0.01 mM 12-B-12 was as high as 98.3% after 30 days of incubation in simulated seawater with SRB, and the planktonic and sessile SRB on the carbon steel surface can be reduced to undetectable level. Quantum chemical calculation and molecular dynamics simulation were used to study the structure-ac-tivity relationship. (c) 2021 Elsevier B.V. All rights reserved.
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页数：15
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