Gemini 表面活性剂作为微生物缓蚀剂在模拟海水中对碳钢的缓蚀效率。含半刚性间隔基。
Efficiency of Gemini surfactant containing semi-rigid spacer as microbial corrosion inhibitor for carbon steel in simulated seawater.
机构信息
School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
出版信息
Bioelectrochemistry. 2021 Aug;140:107809. doi: 10.1016/j.bioelechem.2021.107809. Epub 2021 Mar 29.
SRB is one of the main bacteria causing marine microbial corrosion. In order to reduce the loss of microbial 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 efficiency 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-activity relationship.
硫酸盐还原菌（SRB）是引起海洋微生物腐蚀的主要细菌之一。为了减少微生物腐蚀的损失，采用了一种含有半刚性间隔基的双子表面活性剂（12-B-12），通过失重试验、电化学方法和表面形貌分析研究了其在模拟海水中对碳钢的抗菌和缓蚀性能。结果表明，在含硫酸盐还原菌的模拟海水中培养 30 天后，0.01mM 12-B-12 的抑制效率高达 98.3%，可将碳钢表面的浮游和固着硫酸盐还原菌降低到无法检测的水平。量子化学计算和分子动力学模拟用于研究结构-活性关系。
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