Bioelectrochemical Dechlorination of 1,2-DCA with an AQDS-Functionalized Cathode Serving as Electron Donor

• Type: Article in International Scientific Journal
• Date: 2017-06-09

Authors

P. Leitão (Author) FEUP; H. Nouws (Author) Other; A. S. Danko (Author) Other; F. Aulenta (Author) Other

Journal

Title: Fuel Cells

Vol. 17 No. 5

Pages: 612-617

ISSN: 1615-6846

Publisher: Wiley-Blackwell

Indexing

Scopus

INSPEC

Other information

DOI: 10.1002/fuce.201700045

Abstract (EN): In the present study we describe a simple method to immobilize the redox mediator anthraquinone-2,6-disulfonate (AQDS) at the surface of graphite electrodes, by means of a commercial anion exchange membrane. Cyclic voltammetry experiments confirmed the efficacy of the immobilization protocol and the long-term (over 70 days) electrochemical stability of the AQDS-functionalized electrode. Potentiostatic (–300 mV vs. SHE) batch experiments proved the capability of the electrode in accelerating the bioelectrochemical reductive dechlorination of the groundwater contaminant 1,2-dichloroethane (1,2-DCA) to harmless ethene by a mixed microbial culture, by serving as electron donor in the process. Considering the reported broad range of anodic and cathodic reactions catalyzed by AQDS, the herein described functionalized electrode has a remarkable potential for application in the environmental and industrial sector.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6