Naturally effective inhibition of microbial corrosion by bacterium-alga symbiosis on 304 stainless steel

Dong，Yuqiao1; Song，Guang Ling1,2,3,4; Zheng，Dajiang1

2022-07-01

10.1016/j.jclepro.2022.131823

Journal of Cleaner Production   影响因子和分区

0959-6526

1879-1786

An environment-friendly corrosion inhibition method based on natural bacteria-alga symbiosis was proposed for stainless steel in this study. The symbiotic organisms could be adhered spontaneously on a stainless steel in the marine environment. Results showed that with the addition of the sessile algal biofilm of Phaeodactylum tricornutum, the corrosion rate of 304 stainless steel was reduced by 97.7% compared with that with only bacterium Bacillus altitudinis. This could be caused by the oxygen produced by the photosynthesis of the algae biofilm, which effectively enhanced the stability of the passive film, reduced the oxygen concentration difference under the biofilm and outside the biofilm, and thus relieved the micro-galvanic corrosion attack. Meanwhile, aided by the alga, an intelligent self-repairing corrosion product layer of iron phosphate could be preferentially deposited over the pit after pitting was initiated, which would further suppress the bio-corrosion damage and synergistically protect the 304 SS.

Bio-corrosion inhibition Natural symbiosis Algae Stainless steel

SCI ; EI

英语

其他

National Key Research and Development Program of China[2017YFB0702100] ; National Natural Science Foundation of China["51731008","51671163","51901198"]

Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology

Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences

WOS:000832090700001

ELSEVIER SCI LTD

20221812068515

Austenitic stainless steel ; Bacteria ; Bacteriology ; Biofilms ; Corrosion inhibitors ; Corrosion protection ; Corrosion rate ; Galvanic corrosion ; Iron compounds ; Microbial corrosion ; Oxygen ; Steel corrosion

Biomaterials (including synthetics):462.5 ; Metals Corrosion:539.1 ; Corrosion Protection:539.2 ; Protection Methods:539.2.1 ; Steel:545.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

2-s2.0-85129301658

Web of Science

1.Center for Marine Materials Corrosion and Protection,College of Materials,Xiamen University,Xiamen,361005,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
3.State Key Laboratory of Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen,422 S. Siming Rd,361005,China
4.The University of Queensland,School of Mechanical and Mining Engineering,Division of Materials Engineering,St Lucia,4072,Australia

Dong，Yuqiao,Song，Guang Ling,Zheng，Dajiang. Naturally effective inhibition of microbial corrosion by bacterium-alga symbiosis on 304 stainless steel[J]. Journal of Cleaner Production,2022,356.

Dong，Yuqiao,Song，Guang Ling,&Zheng，Dajiang.(2022).Naturally effective inhibition of microbial corrosion by bacterium-alga symbiosis on 304 stainless steel.Journal of Cleaner Production,356.

Dong，Yuqiao,et al."Naturally effective inhibition of microbial corrosion by bacterium-alga symbiosis on 304 stainless steel".Journal of Cleaner Production 356(2022).