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Redox mediator enhanced simultaneous decolorization of azo dye and bioelectricity generation in air-cathode microbial fuel cell.
Bioresour Technol. 2013 Aug; 142:407-14.BT

Abstract

Enhanced simultaneous decolorization of Congo red and bioelectricity generation with anthraquinone-2,6-disulphonic disodium salt (AQDS), riboflavin (RF) and humic acid (HA) as mediators in air-cathode microbial fuel cell (MFC) was demonstrated. Compared with mediator-free MFC, the MFC with added 0.005 mM AQDS, 0.005 mM RF or 1g/L HA showed 36%, 26% and 15% increase in maximum power density along with 394%, 450%, and 258% increases in decolorization rates of Congo red, respectively. Addition of mediators at higher concentration further increased power and Congo red decolorization but the increases were not proportional to the rise in mediator concentration. Based on decreases of anode charge transfer resistance and increases of Congo red decolorization, the mediators kinetically promote the extracellular electron transfer between bacteria, anode and Congo red. Microbial analysis showed that addition of mediators changed the composition of anodic microbial community and stimulated the growth of species belonging to Chlorobi, Endomicrobia and Firmicutes.

Authors+Show Affiliations

State Key Lab of Pulp and Paper Engineering, College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China. sunjian472@163.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23748088

Citation

Sun, Jian, et al. "Redox Mediator Enhanced Simultaneous Decolorization of Azo Dye and Bioelectricity Generation in Air-cathode Microbial Fuel Cell." Bioresource Technology, vol. 142, 2013, pp. 407-14.
Sun J, Li W, Li Y, et al. Redox mediator enhanced simultaneous decolorization of azo dye and bioelectricity generation in air-cathode microbial fuel cell. Bioresour Technol. 2013;142:407-14.
Sun, J., Li, W., Li, Y., Hu, Y., & Zhang, Y. (2013). Redox mediator enhanced simultaneous decolorization of azo dye and bioelectricity generation in air-cathode microbial fuel cell. Bioresource Technology, 142, 407-14. https://doi.org/10.1016/j.biortech.2013.05.039
Sun J, et al. Redox Mediator Enhanced Simultaneous Decolorization of Azo Dye and Bioelectricity Generation in Air-cathode Microbial Fuel Cell. Bioresour Technol. 2013;142:407-14. PubMed PMID: 23748088.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Redox mediator enhanced simultaneous decolorization of azo dye and bioelectricity generation in air-cathode microbial fuel cell. AU - Sun,Jian, AU - Li,Wanjun, AU - Li,Youming, AU - Hu,Yongyou, AU - Zhang,Yaping, Y1 - 2013/05/24/ PY - 2013/04/05/received PY - 2013/05/03/revised PY - 2013/05/05/accepted PY - 2013/6/11/entrez PY - 2013/6/12/pubmed PY - 2014/2/12/medline KW - Azo dye KW - Decolorization KW - Electricity generation KW - Electron transfer KW - Microbial fuel cell SP - 407 EP - 14 JF - Bioresource technology JO - Bioresour Technol VL - 142 N2 - Enhanced simultaneous decolorization of Congo red and bioelectricity generation with anthraquinone-2,6-disulphonic disodium salt (AQDS), riboflavin (RF) and humic acid (HA) as mediators in air-cathode microbial fuel cell (MFC) was demonstrated. Compared with mediator-free MFC, the MFC with added 0.005 mM AQDS, 0.005 mM RF or 1g/L HA showed 36%, 26% and 15% increase in maximum power density along with 394%, 450%, and 258% increases in decolorization rates of Congo red, respectively. Addition of mediators at higher concentration further increased power and Congo red decolorization but the increases were not proportional to the rise in mediator concentration. Based on decreases of anode charge transfer resistance and increases of Congo red decolorization, the mediators kinetically promote the extracellular electron transfer between bacteria, anode and Congo red. Microbial analysis showed that addition of mediators changed the composition of anodic microbial community and stimulated the growth of species belonging to Chlorobi, Endomicrobia and Firmicutes. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/23748088/Redox_mediator_enhanced_simultaneous_decolorization_of_azo_dye_and_bioelectricity_generation_in_air_cathode_microbial_fuel_cell_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(13)00799-2 DB - PRIME DP - Unbound Medicine ER -