Issue 9, 2018
From the journal:

RSC Advances

The influence of Bacillus subtilis on tin-coated copper in an aqueous environment

Ruilin Xiong,†a   Kui Xiao, ORCID logo †*a   Pan Yi,a   Yuting Hu,a   Chaofang Dong, ORCID logo a   Junsheng Wua  and  Xiaogang Liab  

* Corresponding authors

a Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, P. R. China

b Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, P. R. China

Abstract

The influence of Bacillus subtilis (BS) on tin-coated copper in an aqueous environment was investigated by exposing the sample to a culture medium inoculated with BS. Scanning electron microscopy, electrochemical measurements and chemical analyses were performed to study the corrosion mechanism. The experimental results show that BS can adhere and gather on the surface of the sample, resulting in oxygen consumption at the place where the bacteria are densely attached. Increases in the Rct values after the initial immersion showed that corrosion was inhibited, while decreases in the Rct values after the later immersion showed that corrosion was accelerated. Our results suggest that differences in oxygen concentration due to activity of BS are the main reason for corrosion of tin-coated copper.

Graphical abstract: The influence of Bacillus subtilis on tin-coated copper in an aqueous environment

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Article information

DOI
https://doi.org/10.1039/C7RA07864A
Article type
Review Article
Submitted
17 Jul 2017
Accepted
10 Jan 2018
First published
25 Jan 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 4671-4679

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The influence of Bacillus subtilis on tin-coated copper in an aqueous environment

R. Xiong, K. Xiao, P. Yi, Y. Hu, C. Dong, J. Wu and X. Li, RSC Adv., 2018, 8, 4671 DOI: 10.1039/C7RA07864A

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