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Oxygen Reduction Reaction Affected by Sulfate-Reducing Bacteria: Different Roles of Bacterial Cells and Metabolites
Wu, Jiajia1; Liu, Huaiqun2; Wang, Peng1; Zhang, Dun1; Sun, Yan1; Li, Ee1,3
2017-09-01
Source PublicationINDIAN JOURNAL OF MICROBIOLOGY
Volume57Issue:3Pages:344-350
SubtypeArticle
AbstractSulfate-reducing bacteria (SRB) were found to be capable of tolerating a certain amount of oxygen (O-2), but how they affect oxygen reduction reaction (ORR) has not been clear. The present work investigated the impact of SRB on ORR in 3.5 wt% sodium chloride solution with the cyclic voltammetry method. The addition of SRB culture solution hampered both the reduction of O-2 to superoxide (O (2) (center dot-) ) and hydrogen peroxide (H2O2) to water (H2O), and the influence of SRB metabolites was much larger than that of bacterial cells. Sulfide and extracellular polymeric substances (EPS), typical inorganic and organic metabolic products, had great impact on ORR. Sulfide played an important role in the decrease of cathodic current for H2O2 reduction due to its hydrolysis and chemical reaction activity with H2O2. EPS were sticky, easy to adsorb on the electrode surface and abundant in functional groups, which hindered the transformation of O-2 into O (2) (center dot-) and favored the reduction of H2O2 to H2O.
KeywordSulfate-reducing Bacteria Oxygen Reduction Reaction Sulfide Extracellular Polymeric Substances Cyclic Voltammetry
DOI10.1007/s12088-017-0667-z
Indexed BySCI
Language英语
WOS IDWOS:000408699600012
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143152
Collection海洋环境腐蚀与与生物污损重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.State Ocean Adm, Shenzhen Marine Environm Monitoring Stn, Shenzhen 518067, Peoples R China
3.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wu, Jiajia,Liu, Huaiqun,Wang, Peng,et al. Oxygen Reduction Reaction Affected by Sulfate-Reducing Bacteria: Different Roles of Bacterial Cells and Metabolites[J]. INDIAN JOURNAL OF MICROBIOLOGY,2017,57(3):344-350.
APA Wu, Jiajia,Liu, Huaiqun,Wang, Peng,Zhang, Dun,Sun, Yan,&Li, Ee.(2017).Oxygen Reduction Reaction Affected by Sulfate-Reducing Bacteria: Different Roles of Bacterial Cells and Metabolites.INDIAN JOURNAL OF MICROBIOLOGY,57(3),344-350.
MLA Wu, Jiajia,et al."Oxygen Reduction Reaction Affected by Sulfate-Reducing Bacteria: Different Roles of Bacterial Cells and Metabolites".INDIAN JOURNAL OF MICROBIOLOGY 57.3(2017):344-350.
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