Anthraquinone-2-sulfonate immobilized to conductive polypyrrole hydrogel as a bioanode to enhance power production in microbial fuel cell. (November 2017)

• Record Type: Journal Article
• Authors: Tang, Xinhua; Ng, How Yong
• Is Part Of: Bioresource technology. Volume 244:Part 1(2017)
• Page Start: 452
• Page End: 455
• Publication Date: 2017-11
• Subjects: Microbial fuel cell -- Bioanode -- Anodic electron transfer -- Power production -- Conductive polypyrrole hydrogel -- Anthraquinone-2-sulfonate; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.07.189
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Anthraquinone-2-sulfonate was covalently grafted on conductive polypyrrole hydrogel. CPH/AQS enhanced biofilm formation. CPH/AQS reduced charge transfer resistance. CPH/AQS increased power density in MFC. Abstract: In this study, anthraquinone-2-sulfonate (AQS), a redox mediator, was covalently bound to conductive polypyrrole hydrogel (CPH) via electrochemical reduction of the in-situ -generated AQS diazonium salts. The porous structure and hydrophilic surface of this CPH/AQS anode enhanced biofilm formation while the AQS bound on the CPH/AQS anode worked as a redox mediator. The CPH/AQS bioanode reduced the charge transfer resistance from 28.3 Ω to 4.1 Ω while increased the maximum power density from 762 ± 37 mW/m 2 to 1919 ± 69 mW/m 2, compared with the bare anode. These results demonstrated that the facile synthesis of the CPH/AQS anode provided an efficient route to enhance the power production of microbial fuel cell (MFC).