Study on Anti-Microbial Corrosion of Catering Waste Oil Derivative Inhibitors

GUO Rongting, LIU Zheng, WANG Sheng, CHEN Zesheng, LU Yiju

doi:10.16577/j.issn.1001-1560.2022.0340

Materials Protection >

2022 , Vol. 55 >Issue 12: 61 - 69

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0340

Study on Anti-Microbial Corrosion of Catering Waste Oil Derivative Inhibitors

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(Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials， College of Chemical and Biological Engineering， Guilin University of Technology， Guilin 541004， China)

Received date: 2022-06-27

Revised date: 2022-07-28

Accepted date: 2022-09-30

Online published: 2023-12-26

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Abstract

The N in the nitrogen-containing corrosion inhibitor molecules can not only adsorb with carbon steel to form a protective film， but also destroy the bacterial cell membrane and thereby killing the bacteria. In order to explore the corrosion inhibition performance of benzimidazole catering waste oil derivative corrosion inhibitor on Q235 carbon steel， benzimidazole catering waste oil derivative 2-heptadecyl-5-methyl-1H-benzo[d]imidazole corrosion inhibitor was added into simulated seawater， and the weight loss method， electrochemical test and scanning electron microscope were used to characterize the corrosion. Meanwhile， molecular dynamics simulation was employed to investigate the adsorption performance parameters of corrosion inhibitor molecules on the Fe surface. Results showed that when the added amount of benzimidazole catering waste oil derivative corrosion inhibitor was 500 mg/L， the corrosion inhibition rate could reach 91.95%. The molecular dynamics simulation results revealed that the corrosion inhibitor molecules had a planar adsorption configuration on the Fe surface.

Key words： catering waste oil; microbial corrosion; corrosion inhibitor; electrochemical testing; molecular dynamics simulation

Cite this article

GUO Rongting, LIU Zheng, WANG Sheng, CHEN Zesheng, LU Yiju . Study on Anti-Microbial Corrosion of Catering Waste Oil Derivative Inhibitors[J]. Materials Protection, 2022 , 55(12) : 61 -69 . DOI: 10.16577/j.issn.1001-1560.2022.0340

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