Efficacy of electrode position in microbial fuel cell for simultaneous Cr(VI) reduction and bioelectricity production.

Bioelectric Energy Sources Chromium Electricity Electrodes
Bioelectricity production Cr(VI) reduction Electrode position Microbial fuel cells Pseudomonas

Journal

The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500

Informations de publication

Date de publication:
15 Dec 2020
Historique:
received: 09 07 2020
revised: 27 07 2020
accepted: 31 07 2020
pubmed: 18 8 2020
medline: 29 10 2020
entrez: 18 8 2020
Statut: ppublish

Résumé

Microbial fuel cells (MFCs) that are bio-energy transducers capture bioelectricity produced from the oxidation of organic matter by using the electro-active bacteria grown on the biofilm attached on anode. Previous studies explored the effect of several limiting factors, such as electrode material, catalyst type, membrane structure, and electrolyte, on the electrochemical performance of MFCs. However, the effects of electrode position on Cr(VI) reduction and bioelectricity production remain unknown. In this study, MFCs with different electrode positions (i.e., 4 cm (MFC-4), 3 cm (MFC-3), 2 cm (MFC-2), and 1 cm (MFC-1)) were designed and fabricated to evaluate the overall performance of MFCs. The results of electrochemical analysis confirmed that MFC-2 exhibited low exchange transfer resistance (4.9 Ω) and strong conductivity, resulting in optimal electrochemical performance. In addition, Cr(VI) was completely removed within 11 h in MFC-2 with a large reduction rate of 0.91 g/m

Identifiants

DOI: 10.1016/j.scitotenv.2020.141425 PMID: 32798878
pubmed: 32798878
pii: S0048-9697(20)34954-8
doi: 10.1016/j.scitotenv.2020.141425
pii:
doi:

Substances chimiques

Chromium 0R0008Q3JB
chromium hexavalent ion 18540-29-9

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

141425

Informations de copyright

Copyright © 2020 Elsevier B.V. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Auteurs

Juan Zhou (J)

School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, 510006, PR China; Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China.

Meng Li (M)

School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, 510006, PR China; Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China. Electronic address: mengli@jnu.edu.cn.

Wei Zhou (W)

Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China.

Jing Hu (J)

Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China.

Yunchuan Long (Y)

Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China.

Yiu Fai Tsang (YF)

Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, 999077, Hong Kong.

Shaoqi Zhou (S)

School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, 510006, PR China; Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China. Electronic address: fesqzhou@scut.edu.cn.

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Classifications MeSH

questionsmedicales.fr › Équipement et fournitures › Équipement et fournitures électriques › Alimentations électriques › Sources d'énergie bioélectrique › Efficacy of electrode position in microbial...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Métaux lourds › Chrome › Efficacy of electrode position in microbial...
questionsmedicales.fr › Phénomènes physiques › Phénomènes magnétiques › Phénomènes électromagnétiques › Électricité › Efficacy of electrode position in microbial...
questionsmedicales.fr › Équipement et fournitures › Équipement et fournitures électriques › Électrodes › Efficacy of electrode position in microbial...