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Microbial fuel cells for mineralization and decolorization of azo dyes: Recent advances in design and materials

Yadav, Archana; Kumar, Pankaj; Rawat, Deepak; Garg, Shafali; Mukherjee, Paromita; Farooqi, Furqan; Roy, Anurag; Sundaram, Senthilarasu; Sharma, Radhey Shyam; Mishra, Vandana


Archana Yadav

Pankaj Kumar

Deepak Rawat

Shafali Garg

Paromita Mukherjee

Furqan Farooqi

Anurag Roy

Radhey Shyam Sharma

Vandana Mishra


Microbial fuel cells (MFCs) exhibit tremendous potential in the sustainable management of dye wastewater via degrading azo dyes while generating electricity. The past decade has witnessed advances in MFC configurations and materials; however, comprehensive analyses of design and material and its association with dye degradation and electricity generation are required for their industrial application. MFC models with high efficiency of dye decolorization (96–100%) and a wide variation in power generation (29.4–940 mW/m2) have been reported. However, only 28 out of 104 studies analyzed dye mineralization – a prerequisite to obviate dye toxicity. Consequently, the current review aims to provide an in-depth analysis of MFCs potential in dye degradation and mineralization and evaluates materials and designs as crucial factors. Also, structural and operation parameters critical to large-scale applicability and complete mineralization of azo dye were evaluated. Choice of materials, i.e., bacteria, anode, cathode, cathode catalyst, membrane, and substrate and their effects on power density and dye decolorization efficiency presented in review will help in economic feasibility and MFCs scalability to develop a self-sustainable solution for treating azo dye wastewater.

Journal Article Type Article
Acceptance Date Feb 16, 2022
Online Publication Date Mar 1, 2022
Publication Date 2022-06
Deposit Date May 26, 2022
Print ISSN 0048-9697
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 826
Article Number 154038
Keywords Dye remediation, Decolorization, Mineralization, Materials, Power density, Sustainability
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