The synergistic effect of biophoto anode for the enhancement of current generation and degradation.

Abstract:

:The demand for removal of refractory organic pollutants limits the application of microbial fuel cells. In this study, the synergistic effects of bioelectrochemical and photocatalysis methods were captured by constructing a biophoto anode from a combination of WO3/TiO2 and carbon felt. This biophoto electrode was able to decrease the aniline concentration from 63.3 ± 6.2 to 9.3 ± 5.5 mg/L. The structure of the benzene ring was broken through strong oxidation by photocatalysis. Electrochemical analysis showed that photocatalysis also enhanced the extracellular electron transfer of microorganisms and reduced the resistance of the anode from 136.9 Ω to 69.9 Ω. In addition, the maximum current output increased by 28.5% under the composite biophoto electrode. Further analysis of the microbial community indicated that the biophoto electrode promoted the enrichment of Geobacter in the anode. This biophoto electrode provided a method for overcoming the disadvantages of anaerobic degradation of refractory organics.

journal_name

Environ Technol

journal_title

Environmental technology

authors

Long X,Wang H,Wang C,Li X

doi

10.1080/09593330.2019.1611936

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

3420-3430

issue

26

eissn

0959-3330

issn

1479-487X

journal_volume

41

pub_type

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